Home / 87,932.86-121,353.30-49,679.14

Finding the Fourth Proportional to 87,932.86, 121,353.30 and 49,679.14

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Solution

The fourth proportional to 87,932.86, 121,353.30 and 49,679.14 is: 68,560.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.86 : 121,353.30 = 49,679.14 : x
  2. Step 2: Convert to fraction form
    87,932.86/121,353.30 = 49,679.14/x
  3. Step 3: Cross multiply
    87,932.86x = 121,353.30 × 49,679.14
  4. Step 4: Simplify right side
    87,932.86x = 6,028,727,580.16
  5. Step 5: Solve for x
    x = 6,028,727,580.16/87,932.86
  6. Step 6: Final answer
    x = 68,560.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.