Home / 80,536.88-120,752.01-38,423.46

Finding the Fourth Proportional to 80,536.88, 120,752.01 and 38,423.46

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Solution

The fourth proportional to 80,536.88, 120,752.01 and 38,423.46 is: 57,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,536.88 : 120,752.01 = 38,423.46 : x
  2. Step 2: Convert to fraction form
    80,536.88/120,752.01 = 38,423.46/x
  3. Step 3: Cross multiply
    80,536.88x = 120,752.01 × 38,423.46
  4. Step 4: Simplify right side
    80,536.88x = 4,639,710,478.97
  5. Step 5: Solve for x
    x = 4,639,710,478.97/80,536.88
  6. Step 6: Final answer
    x = 57,609.76

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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.