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Finding the Fourth Proportional to 80,622.70, 120,901.25 and 36,237.54

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Solution

The fourth proportional to 80,622.70, 120,901.25 and 36,237.54 is: 54,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,622.70 : 120,901.25 = 36,237.54 : x
  2. Step 2: Convert to fraction form
    80,622.70/120,901.25 = 36,237.54/x
  3. Step 3: Cross multiply
    80,622.70x = 120,901.25 × 36,237.54
  4. Step 4: Simplify right side
    80,622.70x = 4,381,163,097.23
  5. Step 5: Solve for x
    x = 4,381,163,097.23/80,622.70
  6. Step 6: Final answer
    x = 54,341.56

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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.