Home / 87,561.36-131,371.20-28,398.96

Finding the Fourth Proportional to 87,561.36, 131,371.20 and 28,398.96

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Solution

The fourth proportional to 87,561.36, 131,371.20 and 28,398.96 is: 42,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,561.36 : 131,371.20 = 28,398.96 : x
  2. Step 2: Convert to fraction form
    87,561.36/131,371.20 = 28,398.96/x
  3. Step 3: Cross multiply
    87,561.36x = 131,371.20 × 28,398.96
  4. Step 4: Simplify right side
    87,561.36x = 3,730,805,453.95
  5. Step 5: Solve for x
    x = 3,730,805,453.95/87,561.36
  6. Step 6: Final answer
    x = 42,607.90

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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.