Home / 87,909.49-131,870.31-35,318.97

Finding the Fourth Proportional to 87,909.49, 131,870.31 and 35,318.97

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Solution

The fourth proportional to 87,909.49, 131,870.31 and 35,318.97 is: 52,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,909.49 : 131,870.31 = 35,318.97 : x
  2. Step 2: Convert to fraction form
    87,909.49/131,870.31 = 35,318.97/x
  3. Step 3: Cross multiply
    87,909.49x = 131,870.31 × 35,318.97
  4. Step 4: Simplify right side
    87,909.49x = 4,657,523,522.78
  5. Step 5: Solve for x
    x = 4,657,523,522.78/87,909.49
  6. Step 6: Final answer
    x = 52,980.90

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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.