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Finding the Fourth Proportional to 86,656.29, 119,521.71 and 54,794.43

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Solution

The fourth proportional to 86,656.29, 119,521.71 and 54,794.43 is: 75,575.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,656.29 : 119,521.71 = 54,794.43 : x
  2. Step 2: Convert to fraction form
    86,656.29/119,521.71 = 54,794.43/x
  3. Step 3: Cross multiply
    86,656.29x = 119,521.71 × 54,794.43
  4. Step 4: Simplify right side
    86,656.29x = 6,549,123,972.08
  5. Step 5: Solve for x
    x = 6,549,123,972.08/86,656.29
  6. Step 6: Final answer
    x = 75,575.86

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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.