Home / 74,273.40-111,508.98-43,131

Finding the Fourth Proportional to 74,273.40, 111,508.98 and 43,131

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Solution

The fourth proportional to 74,273.40, 111,508.98 and 43,131 is: 64,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,273.40 : 111,508.98 = 43,131 : x
  2. Step 2: Convert to fraction form
    74,273.40/111,508.98 = 43,131/x
  3. Step 3: Cross multiply
    74,273.40x = 111,508.98 × 43,131
  4. Step 4: Simplify right side
    74,273.40x = 4,809,493,816.38
  5. Step 5: Solve for x
    x = 4,809,493,816.38/74,273.40
  6. Step 6: Final answer
    x = 64,753.92

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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.