Home / 78,050.48-117,077.64-25,465.52

Finding the Fourth Proportional to 78,050.48, 117,077.64 and 25,465.52

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Solution

The fourth proportional to 78,050.48, 117,077.64 and 25,465.52 is: 38,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,050.48 : 117,077.64 = 25,465.52 : x
  2. Step 2: Convert to fraction form
    78,050.48/117,077.64 = 25,465.52/x
  3. Step 3: Cross multiply
    78,050.48x = 117,077.64 × 25,465.52
  4. Step 4: Simplify right side
    78,050.48x = 2,981,442,982.97
  5. Step 5: Solve for x
    x = 2,981,442,982.97/78,050.48
  6. Step 6: Final answer
    x = 38,198.91

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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.