Home / 87,521.18-120,773.91-51,702.62

Finding the Fourth Proportional to 87,521.18, 120,773.91 and 51,702.62

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Solution

The fourth proportional to 87,521.18, 120,773.91 and 51,702.62 is: 71,346.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,521.18 : 120,773.91 = 51,702.62 : x
  2. Step 2: Convert to fraction form
    87,521.18/120,773.91 = 51,702.62/x
  3. Step 3: Cross multiply
    87,521.18x = 120,773.91 × 51,702.62
  4. Step 4: Simplify right side
    87,521.18x = 6,244,327,574.64
  5. Step 5: Solve for x
    x = 6,244,327,574.64/87,521.18
  6. Step 6: Final answer
    x = 71,346.47

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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.