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Finding the Fourth Proportional to 80,407.71, 120,526.45 and 27,048.89

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Solution

The fourth proportional to 80,407.71, 120,526.45 and 27,048.89 is: 40,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,407.71 : 120,526.45 = 27,048.89 : x
  2. Step 2: Convert to fraction form
    80,407.71/120,526.45 = 27,048.89/x
  3. Step 3: Cross multiply
    80,407.71x = 120,526.45 × 27,048.89
  4. Step 4: Simplify right side
    80,407.71x = 3,260,106,921.83
  5. Step 5: Solve for x
    x = 3,260,106,921.83/80,407.71
  6. Step 6: Final answer
    x = 40,544.71

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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.