Home / 74,921.92-112,382.08-43,311.86

Finding the Fourth Proportional to 74,921.92, 112,382.08 and 43,311.86

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Solution

The fourth proportional to 74,921.92, 112,382.08 and 43,311.86 is: 64,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,921.92 : 112,382.08 = 43,311.86 : x
  2. Step 2: Convert to fraction form
    74,921.92/112,382.08 = 43,311.86/x
  3. Step 3: Cross multiply
    74,921.92x = 112,382.08 × 43,311.86
  4. Step 4: Simplify right side
    74,921.92x = 4,867,476,915.47
  5. Step 5: Solve for x
    x = 4,867,476,915.47/74,921.92
  6. Step 6: Final answer
    x = 64,967.33

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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.