Home / 87,345.64-131,029.98-31,197.16

Finding the Fourth Proportional to 87,345.64, 131,029.98 and 31,197.16

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Solution

The fourth proportional to 87,345.64, 131,029.98 and 31,197.16 is: 46,799.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,345.64 : 131,029.98 = 31,197.16 : x
  2. Step 2: Convert to fraction form
    87,345.64/131,029.98 = 31,197.16/x
  3. Step 3: Cross multiply
    87,345.64x = 131,029.98 × 31,197.16
  4. Step 4: Simplify right side
    87,345.64x = 4,087,763,250.86
  5. Step 5: Solve for x
    x = 4,087,763,250.86/87,345.64
  6. Step 6: Final answer
    x = 46,799.85

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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.