Home / 73,948.78-102,049.32-40,414.78

Finding the Fourth Proportional to 73,948.78, 102,049.32 and 40,414.78

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Solution

The fourth proportional to 73,948.78, 102,049.32 and 40,414.78 is: 55,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,948.78 : 102,049.32 = 40,414.78 : x
  2. Step 2: Convert to fraction form
    73,948.78/102,049.32 = 40,414.78/x
  3. Step 3: Cross multiply
    73,948.78x = 102,049.32 × 40,414.78
  4. Step 4: Simplify right side
    73,948.78x = 4,124,300,816.95
  5. Step 5: Solve for x
    x = 4,124,300,816.95/73,948.78
  6. Step 6: Final answer
    x = 55,772.40

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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.