Home / 87,358.95-131,005.24-31,188.59

Finding the Fourth Proportional to 87,358.95, 131,005.24 and 31,188.59

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Solution

The fourth proportional to 87,358.95, 131,005.24 and 31,188.59 is: 46,771.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,358.95 : 131,005.24 = 31,188.59 : x
  2. Step 2: Convert to fraction form
    87,358.95/131,005.24 = 31,188.59/x
  3. Step 3: Cross multiply
    87,358.95x = 131,005.24 × 31,188.59
  4. Step 4: Simplify right side
    87,358.95x = 4,085,868,718.21
  5. Step 5: Solve for x
    x = 4,085,868,718.21/87,358.95
  6. Step 6: Final answer
    x = 46,771.04

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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.