Home / 87,409.20-131,088.24-49,962.32

Finding the Fourth Proportional to 87,409.20, 131,088.24 and 49,962.32

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Solution

The fourth proportional to 87,409.20, 131,088.24 and 49,962.32 is: 74,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,409.20 : 131,088.24 = 49,962.32 : x
  2. Step 2: Convert to fraction form
    87,409.20/131,088.24 = 49,962.32/x
  3. Step 3: Cross multiply
    87,409.20x = 131,088.24 × 49,962.32
  4. Step 4: Simplify right side
    87,409.20x = 6,549,472,595.12
  5. Step 5: Solve for x
    x = 6,549,472,595.12/87,409.20
  6. Step 6: Final answer
    x = 74,928.87

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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.