Home / 71,940.92-99,278.06-40,110.20

Finding the Fourth Proportional to 71,940.92, 99,278.06 and 40,110.20

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Solution

The fourth proportional to 71,940.92, 99,278.06 and 40,110.20 is: 55,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,940.92 : 99,278.06 = 40,110.20 : x
  2. Step 2: Convert to fraction form
    71,940.92/99,278.06 = 40,110.20/x
  3. Step 3: Cross multiply
    71,940.92x = 99,278.06 × 40,110.20
  4. Step 4: Simplify right side
    71,940.92x = 3,982,062,842.21
  5. Step 5: Solve for x
    x = 3,982,062,842.21/71,940.92
  6. Step 6: Final answer
    x = 55,351.85

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1.5x scale

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.