Home / 87,417.15-131,153.28-31,256.02

Finding the Fourth Proportional to 87,417.15, 131,153.28 and 31,256.02

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Solution

The fourth proportional to 87,417.15, 131,153.28 and 31,256.02 is: 46,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,417.15 : 131,153.28 = 31,256.02 : x
  2. Step 2: Convert to fraction form
    87,417.15/131,153.28 = 31,256.02/x
  3. Step 3: Cross multiply
    87,417.15x = 131,153.28 × 31,256.02
  4. Step 4: Simplify right side
    87,417.15x = 4,099,329,542.75
  5. Step 5: Solve for x
    x = 4,099,329,542.75/87,417.15
  6. Step 6: Final answer
    x = 46,893.88

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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.