Home / 71,800.89-99,087.57-39,538.95

Finding the Fourth Proportional to 71,800.89, 99,087.57 and 39,538.95

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Solution

The fourth proportional to 71,800.89, 99,087.57 and 39,538.95 is: 54,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,800.89 : 99,087.57 = 39,538.95 : x
  2. Step 2: Convert to fraction form
    71,800.89/99,087.57 = 39,538.95/x
  3. Step 3: Cross multiply
    71,800.89x = 99,087.57 × 39,538.95
  4. Step 4: Simplify right side
    71,800.89x = 3,917,818,475.85
  5. Step 5: Solve for x
    x = 3,917,818,475.85/71,800.89
  6. Step 6: Final answer
    x = 54,565.04

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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.