Home / 86,249.78-129,330.92-39,462.56

Finding the Fourth Proportional to 86,249.78, 129,330.92 and 39,462.56

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Solution

The fourth proportional to 86,249.78, 129,330.92 and 39,462.56 is: 59,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249.78 : 129,330.92 = 39,462.56 : x
  2. Step 2: Convert to fraction form
    86,249.78/129,330.92 = 39,462.56/x
  3. Step 3: Cross multiply
    86,249.78x = 129,330.92 × 39,462.56
  4. Step 4: Simplify right side
    86,249.78x = 5,103,729,612.34
  5. Step 5: Solve for x
    x = 5,103,729,612.34/86,249.78
  6. Step 6: Final answer
    x = 59,173.83

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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.