Home / 87,420.90-131,034.15-48,006.30

Finding the Fourth Proportional to 87,420.90, 131,034.15 and 48,006.30

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Solution

The fourth proportional to 87,420.90, 131,034.15 and 48,006.30 is: 71,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,420.90 : 131,034.15 = 48,006.30 : x
  2. Step 2: Convert to fraction form
    87,420.90/131,034.15 = 48,006.30/x
  3. Step 3: Cross multiply
    87,420.90x = 131,034.15 × 48,006.30
  4. Step 4: Simplify right side
    87,420.90x = 6,290,464,715.15
  5. Step 5: Solve for x
    x = 6,290,464,715.15/87,420.90
  6. Step 6: Final answer
    x = 71,956.07

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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.