Home / 71,049.21-98,047.91-39,218.11

Finding the Fourth Proportional to 71,049.21, 98,047.91 and 39,218.11

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Solution

The fourth proportional to 71,049.21, 98,047.91 and 39,218.11 is: 54,121.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,049.21 : 98,047.91 = 39,218.11 : x
  2. Step 2: Convert to fraction form
    71,049.21/98,047.91 = 39,218.11/x
  3. Step 3: Cross multiply
    71,049.21x = 98,047.91 × 39,218.11
  4. Step 4: Simplify right side
    71,049.21x = 3,845,253,817.70
  5. Step 5: Solve for x
    x = 3,845,253,817.70/71,049.21
  6. Step 6: Final answer
    x = 54,121.00

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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.