Home / 78,439.62-117,593.34-34,032.96

Finding the Fourth Proportional to 78,439.62, 117,593.34 and 34,032.96

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Solution

The fourth proportional to 78,439.62, 117,593.34 and 34,032.96 is: 51,020.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,439.62 : 117,593.34 = 34,032.96 : x
  2. Step 2: Convert to fraction form
    78,439.62/117,593.34 = 34,032.96/x
  3. Step 3: Cross multiply
    78,439.62x = 117,593.34 × 34,032.96
  4. Step 4: Simplify right side
    78,439.62x = 4,002,049,436.49
  5. Step 5: Solve for x
    x = 4,002,049,436.49/78,439.62
  6. Step 6: Final answer
    x = 51,020.77

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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.