Home / 80,285.28-120,444.83-30,364.26

Finding the Fourth Proportional to 80,285.28, 120,444.83 and 30,364.26

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Solution

The fourth proportional to 80,285.28, 120,444.83 and 30,364.26 is: 45,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,285.28 : 120,444.83 = 30,364.26 : x
  2. Step 2: Convert to fraction form
    80,285.28/120,444.83 = 30,364.26/x
  3. Step 3: Cross multiply
    80,285.28x = 120,444.83 × 30,364.26
  4. Step 4: Simplify right side
    80,285.28x = 3,657,217,981.95
  5. Step 5: Solve for x
    x = 3,657,217,981.95/80,285.28
  6. Step 6: Final answer
    x = 45,552.78

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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.