Home / 83,539.13-115,302.42-65,353.82

Finding the Fourth Proportional to 83,539.13, 115,302.42 and 65,353.82

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Solution

The fourth proportional to 83,539.13, 115,302.42 and 65,353.82 is: 90,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,539.13 : 115,302.42 = 65,353.82 : x
  2. Step 2: Convert to fraction form
    83,539.13/115,302.42 = 65,353.82/x
  3. Step 3: Cross multiply
    83,539.13x = 115,302.42 × 65,353.82
  4. Step 4: Simplify right side
    83,539.13x = 7,535,453,025.73
  5. Step 5: Solve for x
    x = 7,535,453,025.73/83,539.13
  6. Step 6: Final answer
    x = 90,202.68

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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.