Home / 75,427.30-113,213.85-45,902.80

Finding the Fourth Proportional to 75,427.30, 113,213.85 and 45,902.80

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Solution

The fourth proportional to 75,427.30, 113,213.85 and 45,902.80 is: 68,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,427.30 : 113,213.85 = 45,902.80 : x
  2. Step 2: Convert to fraction form
    75,427.30/113,213.85 = 45,902.80/x
  3. Step 3: Cross multiply
    75,427.30x = 113,213.85 × 45,902.80
  4. Step 4: Simplify right side
    75,427.30x = 5,196,832,713.78
  5. Step 5: Solve for x
    x = 5,196,832,713.78/75,427.30
  6. Step 6: Final answer
    x = 68,898.56

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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.