Home / 87,565.77-120,818.52-53,561.88

Finding the Fourth Proportional to 87,565.77, 120,818.52 and 53,561.88

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Solution

The fourth proportional to 87,565.77, 120,818.52 and 53,561.88 is: 73,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,565.77 : 120,818.52 = 53,561.88 : x
  2. Step 2: Convert to fraction form
    87,565.77/120,818.52 = 53,561.88/x
  3. Step 3: Cross multiply
    87,565.77x = 120,818.52 × 53,561.88
  4. Step 4: Simplify right side
    87,565.77x = 6,471,267,070.02
  5. Step 5: Solve for x
    x = 6,471,267,070.02/87,565.77
  6. Step 6: Final answer
    x = 73,901.79

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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.