Home / 87,685.44-131,475.59-42,618.04

Finding the Fourth Proportional to 87,685.44, 131,475.59 and 42,618.04

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Solution

The fourth proportional to 87,685.44, 131,475.59 and 42,618.04 is: 63,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,685.44 : 131,475.59 = 42,618.04 : x
  2. Step 2: Convert to fraction form
    87,685.44/131,475.59 = 42,618.04/x
  3. Step 3: Cross multiply
    87,685.44x = 131,475.59 × 42,618.04
  4. Step 4: Simplify right side
    87,685.44x = 5,603,231,941.46
  5. Step 5: Solve for x
    x = 5,603,231,941.46/87,685.44
  6. Step 6: Final answer
    x = 63,901.51

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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.