Home / 57,037.50-78,712.02-31,891.86

Finding the Fourth Proportional to 57,037.50, 78,712.02 and 31,891.86

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Solution

The fourth proportional to 57,037.50, 78,712.02 and 31,891.86 is: 44,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.50 : 78,712.02 = 31,891.86 : x
  2. Step 2: Convert to fraction form
    57,037.50/78,712.02 = 31,891.86/x
  3. Step 3: Cross multiply
    57,037.50x = 78,712.02 × 31,891.86
  4. Step 4: Simplify right side
    57,037.50x = 2,510,272,722.16
  5. Step 5: Solve for x
    x = 2,510,272,722.16/57,037.50
  6. Step 6: Final answer
    x = 44,010.92

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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.