Home / 80,072.20-110,487.80-45,617.24

Finding the Fourth Proportional to 80,072.20, 110,487.80 and 45,617.24

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Solution

The fourth proportional to 80,072.20, 110,487.80 and 45,617.24 is: 62,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,072.20 : 110,487.80 = 45,617.24 : x
  2. Step 2: Convert to fraction form
    80,072.20/110,487.80 = 45,617.24/x
  3. Step 3: Cross multiply
    80,072.20x = 110,487.80 × 45,617.24
  4. Step 4: Simplify right side
    80,072.20x = 5,040,148,489.67
  5. Step 5: Solve for x
    x = 5,040,148,489.67/80,072.20
  6. Step 6: Final answer
    x = 62,945.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.