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Finding the Fourth Proportional to 80,520.10, 120,801.03 and 30,601.06

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Solution

The fourth proportional to 80,520.10, 120,801.03 and 30,601.06 is: 45,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520.10 : 120,801.03 = 30,601.06 : x
  2. Step 2: Convert to fraction form
    80,520.10/120,801.03 = 30,601.06/x
  3. Step 3: Cross multiply
    80,520.10x = 120,801.03 × 30,601.06
  4. Step 4: Simplify right side
    80,520.10x = 3,696,639,567.09
  5. Step 5: Solve for x
    x = 3,696,639,567.09/80,520.10
  6. Step 6: Final answer
    x = 45,909.53

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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.