Home / 78,445.44-117,671.76-38,500.56

Finding the Fourth Proportional to 78,445.44, 117,671.76 and 38,500.56

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Solution

The fourth proportional to 78,445.44, 117,671.76 and 38,500.56 is: 57,752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,445.44 : 117,671.76 = 38,500.56 : x
  2. Step 2: Convert to fraction form
    78,445.44/117,671.76 = 38,500.56/x
  3. Step 3: Cross multiply
    78,445.44x = 117,671.76 × 38,500.56
  4. Step 4: Simplify right side
    78,445.44x = 4,530,428,656.19
  5. Step 5: Solve for x
    x = 4,530,428,656.19/78,445.44
  6. Step 6: Final answer
    x = 57,752.61

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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.