Home / 72,534.90-108,700.22-57,677.88

Finding the Fourth Proportional to 72,534.90, 108,700.22 and 57,677.88

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Solution

The fourth proportional to 72,534.90, 108,700.22 and 57,677.88 is: 86,435.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,534.90 : 108,700.22 = 57,677.88 : x
  2. Step 2: Convert to fraction form
    72,534.90/108,700.22 = 57,677.88/x
  3. Step 3: Cross multiply
    72,534.90x = 108,700.22 × 57,677.88
  4. Step 4: Simplify right side
    72,534.90x = 6,269,598,245.13
  5. Step 5: Solve for x
    x = 6,269,598,245.13/72,534.90
  6. Step 6: Final answer
    x = 86,435.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.