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Finding the Fourth Proportional to 80,279.94, 120,437.52 and 26,969.98

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Solution

The fourth proportional to 80,279.94, 120,437.52 and 26,969.98 is: 40,460.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,279.94 : 120,437.52 = 26,969.98 : x
  2. Step 2: Convert to fraction form
    80,279.94/120,437.52 = 26,969.98/x
  3. Step 3: Cross multiply
    80,279.94x = 120,437.52 × 26,969.98
  4. Step 4: Simplify right side
    80,279.94x = 3,248,197,505.65
  5. Step 5: Solve for x
    x = 3,248,197,505.65/80,279.94
  6. Step 6: Final answer
    x = 40,460.89

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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.