Home / 78,358.14-117,512.28-25,755.48

Finding the Fourth Proportional to 78,358.14, 117,512.28 and 25,755.48

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Solution

The fourth proportional to 78,358.14, 117,512.28 and 25,755.48 is: 38,625.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,358.14 : 117,512.28 = 25,755.48 : x
  2. Step 2: Convert to fraction form
    78,358.14/117,512.28 = 25,755.48/x
  3. Step 3: Cross multiply
    78,358.14x = 117,512.28 × 25,755.48
  4. Step 4: Simplify right side
    78,358.14x = 3,026,585,177.29
  5. Step 5: Solve for x
    x = 3,026,585,177.29/78,358.14
  6. Step 6: Final answer
    x = 38,625.03

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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.