Home / 87,867.79-131,774.45-31,700.60

Finding the Fourth Proportional to 87,867.79, 131,774.45 and 31,700.60

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Solution

The fourth proportional to 87,867.79, 131,774.45 and 31,700.60 is: 47,541.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.79 : 131,774.45 = 31,700.60 : x
  2. Step 2: Convert to fraction form
    87,867.79/131,774.45 = 31,700.60/x
  3. Step 3: Cross multiply
    87,867.79x = 131,774.45 × 31,700.60
  4. Step 4: Simplify right side
    87,867.79x = 4,177,329,462.67
  5. Step 5: Solve for x
    x = 4,177,329,462.67/87,867.79
  6. Step 6: Final answer
    x = 47,541.08

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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.