Home / 71,115.23-98,134.00-39,281.63

Finding the Fourth Proportional to 71,115.23, 98,134.00 and 39,281.63

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Solution

The fourth proportional to 71,115.23, 98,134.00 and 39,281.63 is: 54,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,115.23 : 98,134.00 = 39,281.63 : x
  2. Step 2: Convert to fraction form
    71,115.23/98,134.00 = 39,281.63/x
  3. Step 3: Cross multiply
    71,115.23x = 98,134.00 × 39,281.63
  4. Step 4: Simplify right side
    71,115.23x = 3,854,862,889.55
  5. Step 5: Solve for x
    x = 3,854,862,889.55/71,115.23
  6. Step 6: Final answer
    x = 54,205.87

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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.