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Finding the Fourth Proportional to 57,532.86, 79,419.92 and 38,680.92

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Solution

The fourth proportional to 57,532.86, 79,419.92 and 38,680.92 is: 53,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,532.86 : 79,419.92 = 38,680.92 : x
  2. Step 2: Convert to fraction form
    57,532.86/79,419.92 = 38,680.92/x
  3. Step 3: Cross multiply
    57,532.86x = 79,419.92 × 38,680.92
  4. Step 4: Simplify right side
    57,532.86x = 3,072,035,378.52
  5. Step 5: Solve for x
    x = 3,072,035,378.52/57,532.86
  6. Step 6: Final answer
    x = 53,396.19

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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.