Home / 67,938.47-102,043.52-40,974.71

Finding the Fourth Proportional to 67,938.47, 102,043.52 and 40,974.71

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Solution

The fourth proportional to 67,938.47, 102,043.52 and 40,974.71 is: 61,543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,938.47 : 102,043.52 = 40,974.71 : x
  2. Step 2: Convert to fraction form
    67,938.47/102,043.52 = 40,974.71/x
  3. Step 3: Cross multiply
    67,938.47x = 102,043.52 × 40,974.71
  4. Step 4: Simplify right side
    67,938.47x = 4,181,202,924.29
  5. Step 5: Solve for x
    x = 4,181,202,924.29/67,938.47
  6. Step 6: Final answer
    x = 61,543.97

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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.