Home / 57,639.28-79,517.08-36,115.80

Finding the Fourth Proportional to 57,639.28, 79,517.08 and 36,115.80

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Solution

The fourth proportional to 57,639.28, 79,517.08 and 36,115.80 is: 49,824.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.28 : 79,517.08 = 36,115.80 : x
  2. Step 2: Convert to fraction form
    57,639.28/79,517.08 = 36,115.80/x
  3. Step 3: Cross multiply
    57,639.28x = 79,517.08 × 36,115.80
  4. Step 4: Simplify right side
    57,639.28x = 2,871,822,957.86
  5. Step 5: Solve for x
    x = 2,871,822,957.86/57,639.28
  6. Step 6: Final answer
    x = 49,824.06

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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.