Home / 87,724-121,060.74-50,000.68

Finding the Fourth Proportional to 87,724, 121,060.74 and 50,000.68

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Solution

The fourth proportional to 87,724, 121,060.74 and 50,000.68 is: 69,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,724 : 121,060.74 = 50,000.68 : x
  2. Step 2: Convert to fraction form
    87,724/121,060.74 = 50,000.68/x
  3. Step 3: Cross multiply
    87,724x = 121,060.74 × 50,000.68
  4. Step 4: Simplify right side
    87,724x = 6,053,119,321.30
  5. Step 5: Solve for x
    x = 6,053,119,321.30/87,724
  6. Step 6: Final answer
    x = 69,001.86

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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.