Home / 57,105.07-85,655.82-27,140.88

Finding the Fourth Proportional to 57,105.07, 85,655.82 and 27,140.88

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Solution

The fourth proportional to 57,105.07, 85,655.82 and 27,140.88 is: 40,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,105.07 : 85,655.82 = 27,140.88 : x
  2. Step 2: Convert to fraction form
    57,105.07/85,655.82 = 27,140.88/x
  3. Step 3: Cross multiply
    57,105.07x = 85,655.82 × 27,140.88
  4. Step 4: Simplify right side
    57,105.07x = 2,324,774,433.70
  5. Step 5: Solve for x
    x = 2,324,774,433.70/57,105.07
  6. Step 6: Final answer
    x = 40,710.47

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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.