Home / 87,867.86-131,774.53-31,700.66

Finding the Fourth Proportional to 87,867.86, 131,774.53 and 31,700.66

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Solution

The fourth proportional to 87,867.86, 131,774.53 and 31,700.66 is: 47,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.86 : 131,774.53 = 31,700.66 : x
  2. Step 2: Convert to fraction form
    87,867.86/131,774.53 = 31,700.66/x
  3. Step 3: Cross multiply
    87,867.86x = 131,774.53 × 31,700.66
  4. Step 4: Simplify right side
    87,867.86x = 4,177,340,226.01
  5. Step 5: Solve for x
    x = 4,177,340,226.01/87,867.86
  6. Step 6: Final answer
    x = 47,541.16

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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.