Home / 71,939.68-99,276.90-40,110.62

Finding the Fourth Proportional to 71,939.68, 99,276.90 and 40,110.62

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Solution

The fourth proportional to 71,939.68, 99,276.90 and 40,110.62 is: 55,352.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,939.68 : 99,276.90 = 40,110.62 : x
  2. Step 2: Convert to fraction form
    71,939.68/99,276.90 = 40,110.62/x
  3. Step 3: Cross multiply
    71,939.68x = 99,276.90 × 40,110.62
  4. Step 4: Simplify right side
    71,939.68x = 3,982,058,010.68
  5. Step 5: Solve for x
    x = 3,982,058,010.68/71,939.68
  6. Step 6: Final answer
    x = 55,352.73

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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.