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Finding the Fourth Proportional to 80,584.40, 120,876.60 and 80,001.20

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Solution

The fourth proportional to 80,584.40, 120,876.60 and 80,001.20 is: 120,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,584.40 : 120,876.60 = 80,001.20 : x
  2. Step 2: Convert to fraction form
    80,584.40/120,876.60 = 80,001.20/x
  3. Step 3: Cross multiply
    80,584.40x = 120,876.60 × 80,001.20
  4. Step 4: Simplify right side
    80,584.40x = 9,670,273,051.92
  5. Step 5: Solve for x
    x = 9,670,273,051.92/80,584.40
  6. Step 6: Final answer
    x = 120,001.80

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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.