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Finding the Fourth Proportional to 80,277.80, 120,430.61 and 26,974.98

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Solution

The fourth proportional to 80,277.80, 120,430.61 and 26,974.98 is: 40,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,277.80 : 120,430.61 = 26,974.98 : x
  2. Step 2: Convert to fraction form
    80,277.80/120,430.61 = 26,974.98/x
  3. Step 3: Cross multiply
    80,277.80x = 120,430.61 × 26,974.98
  4. Step 4: Simplify right side
    80,277.80x = 3,248,613,296.14
  5. Step 5: Solve for x
    x = 3,248,613,296.14/80,277.80
  6. Step 6: Final answer
    x = 40,467.14

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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.