Home / 78,177.96-117,285.17-25,584.26

Finding the Fourth Proportional to 78,177.96, 117,285.17 and 25,584.26

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Solution

The fourth proportional to 78,177.96, 117,285.17 and 25,584.26 is: 38,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,177.96 : 117,285.17 = 25,584.26 : x
  2. Step 2: Convert to fraction form
    78,177.96/117,285.17 = 25,584.26/x
  3. Step 3: Cross multiply
    78,177.96x = 117,285.17 × 25,584.26
  4. Step 4: Simplify right side
    78,177.96x = 3,000,653,569.08
  5. Step 5: Solve for x
    x = 3,000,653,569.08/78,177.96
  6. Step 6: Final answer
    x = 38,382.35

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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.