Home / 80,628.47-120,901.20-36,217.10

Finding the Fourth Proportional to 80,628.47, 120,901.20 and 36,217.10

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Solution

The fourth proportional to 80,628.47, 120,901.20 and 36,217.10 is: 54,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,628.47 : 120,901.20 = 36,217.10 : x
  2. Step 2: Convert to fraction form
    80,628.47/120,901.20 = 36,217.10/x
  3. Step 3: Cross multiply
    80,628.47x = 120,901.20 × 36,217.10
  4. Step 4: Simplify right side
    80,628.47x = 4,378,690,850.52
  5. Step 5: Solve for x
    x = 4,378,690,850.52/80,628.47
  6. Step 6: Final answer
    x = 54,307.01

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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.