Home / 80,982.12-111,695.08-59,465.11

Finding the Fourth Proportional to 80,982.12, 111,695.08 and 59,465.11

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Solution

The fourth proportional to 80,982.12, 111,695.08 and 59,465.11 is: 82,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,982.12 : 111,695.08 = 59,465.11 : x
  2. Step 2: Convert to fraction form
    80,982.12/111,695.08 = 59,465.11/x
  3. Step 3: Cross multiply
    80,982.12x = 111,695.08 × 59,465.11
  4. Step 4: Simplify right side
    80,982.12x = 6,641,960,218.66
  5. Step 5: Solve for x
    x = 6,641,960,218.66/80,982.12
  6. Step 6: Final answer
    x = 82,017.61

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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.