Home / 80,950.62-111,713.82-45,140.28

Finding the Fourth Proportional to 80,950.62, 111,713.82 and 45,140.28

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Solution

The fourth proportional to 80,950.62, 111,713.82 and 45,140.28 is: 62,294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,950.62 : 111,713.82 = 45,140.28 : x
  2. Step 2: Convert to fraction form
    80,950.62/111,713.82 = 45,140.28/x
  3. Step 3: Cross multiply
    80,950.62x = 111,713.82 × 45,140.28
  4. Step 4: Simplify right side
    80,950.62x = 5,042,793,114.67
  5. Step 5: Solve for x
    x = 5,042,793,114.67/80,950.62
  6. Step 6: Final answer
    x = 62,294.68

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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.