Home / 87,565.11-120,842.82-51,785.79

Finding the Fourth Proportional to 87,565.11, 120,842.82 and 51,785.79

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Solution

The fourth proportional to 87,565.11, 120,842.82 and 51,785.79 is: 71,466.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,565.11 : 120,842.82 = 51,785.79 : x
  2. Step 2: Convert to fraction form
    87,565.11/120,842.82 = 51,785.79/x
  3. Step 3: Cross multiply
    87,565.11x = 120,842.82 × 51,785.79
  4. Step 4: Simplify right side
    87,565.11x = 6,257,941,050.58
  5. Step 5: Solve for x
    x = 6,257,941,050.58/87,565.11
  6. Step 6: Final answer
    x = 71,466.15

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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.