Home / 43,119.92-59,503.50-30,378.21

Finding the Fourth Proportional to 43,119.92, 59,503.50 and 30,378.21

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Solution

The fourth proportional to 43,119.92, 59,503.50 and 30,378.21 is: 41,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,119.92 : 59,503.50 = 30,378.21 : x
  2. Step 2: Convert to fraction form
    43,119.92/59,503.50 = 30,378.21/x
  3. Step 3: Cross multiply
    43,119.92x = 59,503.50 × 30,378.21
  4. Step 4: Simplify right side
    43,119.92x = 1,807,609,818.74
  5. Step 5: Solve for x
    x = 1,807,609,818.74/43,119.92
  6. Step 6: Final answer
    x = 41,920.53

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Half scale
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Double scale
Find fourth proportional to 43,120.92, 59,504.88 and 30,379.21
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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.