Home / 71,049.05-98,040.70-39,215.89

Finding the Fourth Proportional to 71,049.05, 98,040.70 and 39,215.89

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Solution

The fourth proportional to 71,049.05, 98,040.70 and 39,215.89 is: 54,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,049.05 : 98,040.70 = 39,215.89 : x
  2. Step 2: Convert to fraction form
    71,049.05/98,040.70 = 39,215.89/x
  3. Step 3: Cross multiply
    71,049.05x = 98,040.70 × 39,215.89
  4. Step 4: Simplify right side
    71,049.05x = 3,844,753,306.72
  5. Step 5: Solve for x
    x = 3,844,753,306.72/71,049.05
  6. Step 6: Final answer
    x = 54,114.07

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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.