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Finding the Fourth Proportional to 80,496.33, 120,695.26 and 38,389.29

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Solution

The fourth proportional to 80,496.33, 120,695.26 and 38,389.29 is: 57,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,496.33 : 120,695.26 = 38,389.29 : x
  2. Step 2: Convert to fraction form
    80,496.33/120,695.26 = 38,389.29/x
  3. Step 3: Cross multiply
    80,496.33x = 120,695.26 × 38,389.29
  4. Step 4: Simplify right side
    80,496.33x = 4,633,405,337.77
  5. Step 5: Solve for x
    x = 4,633,405,337.77/80,496.33
  6. Step 6: Final answer
    x = 57,560.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.