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Finding the Fourth Proportional to 84,879.68, 127,332.72 and 25,701.26

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Solution

The fourth proportional to 84,879.68, 127,332.72 and 25,701.26 is: 38,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,879.68 : 127,332.72 = 25,701.26 : x
  2. Step 2: Convert to fraction form
    84,879.68/127,332.72 = 25,701.26/x
  3. Step 3: Cross multiply
    84,879.68x = 127,332.72 × 25,701.26
  4. Step 4: Simplify right side
    84,879.68x = 3,272,610,706.56
  5. Step 5: Solve for x
    x = 3,272,610,706.56/84,879.68
  6. Step 6: Final answer
    x = 38,555.88

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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.