Home / 74,913.40-112,370.10-67,540.60

Finding the Fourth Proportional to 74,913.40, 112,370.10 and 67,540.60

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Solution

The fourth proportional to 74,913.40, 112,370.10 and 67,540.60 is: 101,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,913.40 : 112,370.10 = 67,540.60 : x
  2. Step 2: Convert to fraction form
    74,913.40/112,370.10 = 67,540.60/x
  3. Step 3: Cross multiply
    74,913.40x = 112,370.10 × 67,540.60
  4. Step 4: Simplify right side
    74,913.40x = 7,589,543,976.06
  5. Step 5: Solve for x
    x = 7,589,543,976.06/74,913.40
  6. Step 6: Final answer
    x = 101,310.90

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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.