Home / 87,636.10-131,454.15-40,980.10

Finding the Fourth Proportional to 87,636.10, 131,454.15 and 40,980.10

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Solution

The fourth proportional to 87,636.10, 131,454.15 and 40,980.10 is: 61,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,636.10 : 131,454.15 = 40,980.10 : x
  2. Step 2: Convert to fraction form
    87,636.10/131,454.15 = 40,980.10/x
  3. Step 3: Cross multiply
    87,636.10x = 131,454.15 × 40,980.10
  4. Step 4: Simplify right side
    87,636.10x = 5,387,004,212.42
  5. Step 5: Solve for x
    x = 5,387,004,212.42/87,636.10
  6. Step 6: Final answer
    x = 61,470.15

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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.