Home / 78,573.20-108,442.42-44,121.78

Finding the Fourth Proportional to 78,573.20, 108,442.42 and 44,121.78

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Solution

The fourth proportional to 78,573.20, 108,442.42 and 44,121.78 is: 60,894.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,573.20 : 108,442.42 = 44,121.78 : x
  2. Step 2: Convert to fraction form
    78,573.20/108,442.42 = 44,121.78/x
  3. Step 3: Cross multiply
    78,573.20x = 108,442.42 × 44,121.78
  4. Step 4: Simplify right side
    78,573.20x = 4,784,672,597.91
  5. Step 5: Solve for x
    x = 4,784,672,597.91/78,573.20
  6. Step 6: Final answer
    x = 60,894.46

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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.