Home / 57,642.38-86,416.62-38,686.56

Finding the Fourth Proportional to 57,642.38, 86,416.62 and 38,686.56

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Solution

The fourth proportional to 57,642.38, 86,416.62 and 38,686.56 is: 57,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,642.38 : 86,416.62 = 38,686.56 : x
  2. Step 2: Convert to fraction form
    57,642.38/86,416.62 = 38,686.56/x
  3. Step 3: Cross multiply
    57,642.38x = 86,416.62 × 38,686.56
  4. Step 4: Simplify right side
    57,642.38x = 3,343,161,754.63
  5. Step 5: Solve for x
    x = 3,343,161,754.63/57,642.38
  6. Step 6: Final answer
    x = 57,998.33

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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.