Home / 80,279.80-120,433.61-26,976.98

Finding the Fourth Proportional to 80,279.80, 120,433.61 and 26,976.98

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Solution

The fourth proportional to 80,279.80, 120,433.61 and 26,976.98 is: 40,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,279.80 : 120,433.61 = 26,976.98 : x
  2. Step 2: Convert to fraction form
    80,279.80/120,433.61 = 26,976.98/x
  3. Step 3: Cross multiply
    80,279.80x = 120,433.61 × 26,976.98
  4. Step 4: Simplify right side
    80,279.80x = 3,248,935,088.30
  5. Step 5: Solve for x
    x = 3,248,935,088.30/80,279.80
  6. Step 6: Final answer
    x = 40,470.14

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1.5x scale

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.