Home / 78,324.47-108,143.91-48,150.24

Finding the Fourth Proportional to 78,324.47, 108,143.91 and 48,150.24

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Solution

The fourth proportional to 78,324.47, 108,143.91 and 48,150.24 is: 66,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,324.47 : 108,143.91 = 48,150.24 : x
  2. Step 2: Convert to fraction form
    78,324.47/108,143.91 = 48,150.24/x
  3. Step 3: Cross multiply
    78,324.47x = 108,143.91 × 48,150.24
  4. Step 4: Simplify right side
    78,324.47x = 5,207,155,221.04
  5. Step 5: Solve for x
    x = 5,207,155,221.04/78,324.47
  6. Step 6: Final answer
    x = 66,481.85

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1.5x scale

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.