Home / 87,569.52-120,823.70-53,565.59

Finding the Fourth Proportional to 87,569.52, 120,823.70 and 53,565.59

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Solution

The fourth proportional to 87,569.52, 120,823.70 and 53,565.59 is: 73,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.52 : 120,823.70 = 53,565.59 : x
  2. Step 2: Convert to fraction form
    87,569.52/120,823.70 = 53,565.59/x
  3. Step 3: Cross multiply
    87,569.52x = 120,823.70 × 53,565.59
  4. Step 4: Simplify right side
    87,569.52x = 6,471,991,904.54
  5. Step 5: Solve for x
    x = 6,471,991,904.54/87,569.52
  6. Step 6: Final answer
    x = 73,906.90

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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.