Home / 70,420.50-97,180.29-38,590.65

Finding the Fourth Proportional to 70,420.50, 97,180.29 and 38,590.65

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Solution

The fourth proportional to 70,420.50, 97,180.29 and 38,590.65 is: 53,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,420.50 : 97,180.29 = 38,590.65 : x
  2. Step 2: Convert to fraction form
    70,420.50/97,180.29 = 38,590.65/x
  3. Step 3: Cross multiply
    70,420.50x = 97,180.29 × 38,590.65
  4. Step 4: Simplify right side
    70,420.50x = 3,750,250,558.29
  5. Step 5: Solve for x
    x = 3,750,250,558.29/70,420.50
  6. Step 6: Final answer
    x = 53,255.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 70,421.50, 97,181.67 and 38,591.65
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.