Home / 87,892.56-121,299.21-49,659.15

Finding the Fourth Proportional to 87,892.56, 121,299.21 and 49,659.15

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Solution

The fourth proportional to 87,892.56, 121,299.21 and 49,659.15 is: 68,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,892.56 : 121,299.21 = 49,659.15 : x
  2. Step 2: Convert to fraction form
    87,892.56/121,299.21 = 49,659.15/x
  3. Step 3: Cross multiply
    87,892.56x = 121,299.21 × 49,659.15
  4. Step 4: Simplify right side
    87,892.56x = 6,023,615,664.27
  5. Step 5: Solve for x
    x = 6,023,615,664.27/87,892.56
  6. Step 6: Final answer
    x = 68,533.85

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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.