Home / 87,631.40-131,447.10-59,637.80

Finding the Fourth Proportional to 87,631.40, 131,447.10 and 59,637.80

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Solution

The fourth proportional to 87,631.40, 131,447.10 and 59,637.80 is: 89,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,631.40 : 131,447.10 = 59,637.80 : x
  2. Step 2: Convert to fraction form
    87,631.40/131,447.10 = 59,637.80/x
  3. Step 3: Cross multiply
    87,631.40x = 131,447.10 × 59,637.80
  4. Step 4: Simplify right side
    87,631.40x = 7,839,215,860.38
  5. Step 5: Solve for x
    x = 7,839,215,860.38/87,631.40
  6. Step 6: Final answer
    x = 89,456.70

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1.5x scale

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.