Home / 57,585.55-79,431.68-39,649.41

Finding the Fourth Proportional to 57,585.55, 79,431.68 and 39,649.41

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Solution

The fourth proportional to 57,585.55, 79,431.68 and 39,649.41 is: 54,691.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,585.55 : 79,431.68 = 39,649.41 : x
  2. Step 2: Convert to fraction form
    57,585.55/79,431.68 = 39,649.41/x
  3. Step 3: Cross multiply
    57,585.55x = 79,431.68 × 39,649.41
  4. Step 4: Simplify right side
    57,585.55x = 3,149,419,247.31
  5. Step 5: Solve for x
    x = 3,149,419,247.31/57,585.55
  6. Step 6: Final answer
    x = 54,691.14

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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.