Home / 74,470.44-102,770.24-40,479.60

Finding the Fourth Proportional to 74,470.44, 102,770.24 and 40,479.60

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Solution

The fourth proportional to 74,470.44, 102,770.24 and 40,479.60 is: 55,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.44 : 102,770.24 = 40,479.60 : x
  2. Step 2: Convert to fraction form
    74,470.44/102,770.24 = 40,479.60/x
  3. Step 3: Cross multiply
    74,470.44x = 102,770.24 × 40,479.60
  4. Step 4: Simplify right side
    74,470.44x = 4,160,098,207.10
  5. Step 5: Solve for x
    x = 4,160,098,207.10/74,470.44
  6. Step 6: Final answer
    x = 55,862.41

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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.