Home / 71,163.90-98,211.26-39,332.12

Finding the Fourth Proportional to 71,163.90, 98,211.26 and 39,332.12

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Solution

The fourth proportional to 71,163.90, 98,211.26 and 39,332.12 is: 54,281.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,163.90 : 98,211.26 = 39,332.12 : x
  2. Step 2: Convert to fraction form
    71,163.90/98,211.26 = 39,332.12/x
  3. Step 3: Cross multiply
    71,163.90x = 98,211.26 × 39,332.12
  4. Step 4: Simplify right side
    71,163.90x = 3,862,856,670.95
  5. Step 5: Solve for x
    x = 3,862,856,670.95/71,163.90
  6. Step 6: Final answer
    x = 54,281.13

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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.