Home / 77,687.80-116,514.28-30,304.04

Finding the Fourth Proportional to 77,687.80, 116,514.28 and 30,304.04

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Solution

The fourth proportional to 77,687.80, 116,514.28 and 30,304.04 is: 45,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,687.80 : 116,514.28 = 30,304.04 : x
  2. Step 2: Convert to fraction form
    77,687.80/116,514.28 = 30,304.04/x
  3. Step 3: Cross multiply
    77,687.80x = 116,514.28 × 30,304.04
  4. Step 4: Simplify right side
    77,687.80x = 3,530,853,401.69
  5. Step 5: Solve for x
    x = 3,530,853,401.69/77,687.80
  6. Step 6: Final answer
    x = 45,449.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.