Home / 78,320.41-108,077.25-44,335.80

Finding the Fourth Proportional to 78,320.41, 108,077.25 and 44,335.80

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Solution

The fourth proportional to 78,320.41, 108,077.25 and 44,335.80 is: 61,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,320.41 : 108,077.25 = 44,335.80 : x
  2. Step 2: Convert to fraction form
    78,320.41/108,077.25 = 44,335.80/x
  3. Step 3: Cross multiply
    78,320.41x = 108,077.25 × 44,335.80
  4. Step 4: Simplify right side
    78,320.41x = 4,791,691,340.55
  5. Step 5: Solve for x
    x = 4,791,691,340.55/78,320.41
  6. Step 6: Final answer
    x = 61,180.62

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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.