Home / 70,421.47-97,181.07-38,590.29

Finding the Fourth Proportional to 70,421.47, 97,181.07 and 38,590.29

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Solution

The fourth proportional to 70,421.47, 97,181.07 and 38,590.29 is: 53,254.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,421.47 : 97,181.07 = 38,590.29 : x
  2. Step 2: Convert to fraction form
    70,421.47/97,181.07 = 38,590.29/x
  3. Step 3: Cross multiply
    70,421.47x = 97,181.07 × 38,590.29
  4. Step 4: Simplify right side
    70,421.47x = 3,750,245,529.10
  5. Step 5: Solve for x
    x = 3,750,245,529.10/70,421.47
  6. Step 6: Final answer
    x = 53,254.29

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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.