Home / 80,360.82-120,534.93-30,436.38

Finding the Fourth Proportional to 80,360.82, 120,534.93 and 30,436.38

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Solution

The fourth proportional to 80,360.82, 120,534.93 and 30,436.38 is: 45,652.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,360.82 : 120,534.93 = 30,436.38 : x
  2. Step 2: Convert to fraction form
    80,360.82/120,534.93 = 30,436.38/x
  3. Step 3: Cross multiply
    80,360.82x = 120,534.93 × 30,436.38
  4. Step 4: Simplify right side
    80,360.82x = 3,668,646,932.75
  5. Step 5: Solve for x
    x = 3,668,646,932.75/80,360.82
  6. Step 6: Final answer
    x = 45,652.18

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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.