Home / 80,693.52-111,436.91-66,494.04

Finding the Fourth Proportional to 80,693.52, 111,436.91 and 66,494.04

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Solution

The fourth proportional to 80,693.52, 111,436.91 and 66,494.04 is: 91,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,693.52 : 111,436.91 = 66,494.04 : x
  2. Step 2: Convert to fraction form
    80,693.52/111,436.91 = 66,494.04/x
  3. Step 3: Cross multiply
    80,693.52x = 111,436.91 × 66,494.04
  4. Step 4: Simplify right side
    80,693.52x = 7,409,890,351.02
  5. Step 5: Solve for x
    x = 7,409,890,351.02/80,693.52
  6. Step 6: Final answer
    x = 91,827.58

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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.