Home / 57,178.56-85,785.48-25,615.20

Finding the Fourth Proportional to 57,178.56, 85,785.48 and 25,615.20

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Solution

The fourth proportional to 57,178.56, 85,785.48 and 25,615.20 is: 38,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,178.56 : 85,785.48 = 25,615.20 : x
  2. Step 2: Convert to fraction form
    57,178.56/85,785.48 = 25,615.20/x
  3. Step 3: Cross multiply
    57,178.56x = 85,785.48 × 25,615.20
  4. Step 4: Simplify right side
    57,178.56x = 2,197,412,227.30
  5. Step 5: Solve for x
    x = 2,197,412,227.30/57,178.56
  6. Step 6: Final answer
    x = 38,430.70

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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.