Home / 57,437.28-86,164.56-17,989.20

Finding the Fourth Proportional to 57,437.28, 86,164.56 and 17,989.20

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Solution

The fourth proportional to 57,437.28, 86,164.56 and 17,989.20 is: 26,986.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,437.28 : 86,164.56 = 17,989.20 : x
  2. Step 2: Convert to fraction form
    57,437.28/86,164.56 = 17,989.20/x
  3. Step 3: Cross multiply
    57,437.28x = 86,164.56 × 17,989.20
  4. Step 4: Simplify right side
    57,437.28x = 1,550,031,502.75
  5. Step 5: Solve for x
    x = 1,550,031,502.75/57,437.28
  6. Step 6: Final answer
    x = 26,986.51

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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.