Home / 87,541.93-131,308.53-31,381.12

Finding the Fourth Proportional to 87,541.93, 131,308.53 and 31,381.12

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Solution

The fourth proportional to 87,541.93, 131,308.53 and 31,381.12 is: 47,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,541.93 : 131,308.53 = 31,381.12 : x
  2. Step 2: Convert to fraction form
    87,541.93/131,308.53 = 31,381.12/x
  3. Step 3: Cross multiply
    87,541.93x = 131,308.53 × 31,381.12
  4. Step 4: Simplify right side
    87,541.93x = 4,120,608,736.95
  5. Step 5: Solve for x
    x = 4,120,608,736.95/87,541.93
  6. Step 6: Final answer
    x = 47,070.12

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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.