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Finding the Fourth Proportional to 61,247.80, 84,516.78 and 34,388.20

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Solution

The fourth proportional to 61,247.80, 84,516.78 and 34,388.20 is: 47,452.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,247.80 : 84,516.78 = 34,388.20 : x
  2. Step 2: Convert to fraction form
    61,247.80/84,516.78 = 34,388.20/x
  3. Step 3: Cross multiply
    61,247.80x = 84,516.78 × 34,388.20
  4. Step 4: Simplify right side
    61,247.80x = 2,906,379,934.00
  5. Step 5: Solve for x
    x = 2,906,379,934.00/61,247.80
  6. Step 6: Final answer
    x = 47,452.81

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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.