Home / 57,757.12-79,680.72-38,861.44

Finding the Fourth Proportional to 57,757.12, 79,680.72 and 38,861.44

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Solution

The fourth proportional to 57,757.12, 79,680.72 and 38,861.44 is: 53,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,757.12 : 79,680.72 = 38,861.44 : x
  2. Step 2: Convert to fraction form
    57,757.12/79,680.72 = 38,861.44/x
  3. Step 3: Cross multiply
    57,757.12x = 79,680.72 × 38,861.44
  4. Step 4: Simplify right side
    57,757.12x = 3,096,507,519.44
  5. Step 5: Solve for x
    x = 3,096,507,519.44/57,757.12
  6. Step 6: Final answer
    x = 53,612.57

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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.