Home / 81,524.12-122,249.16-25,347.68

Finding the Fourth Proportional to 81,524.12, 122,249.16 and 25,347.68

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Solution

The fourth proportional to 81,524.12, 122,249.16 and 25,347.68 is: 38,010.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,524.12 : 122,249.16 = 25,347.68 : x
  2. Step 2: Convert to fraction form
    81,524.12/122,249.16 = 25,347.68/x
  3. Step 3: Cross multiply
    81,524.12x = 122,249.16 × 25,347.68
  4. Step 4: Simplify right side
    81,524.12x = 3,098,732,587.95
  5. Step 5: Solve for x
    x = 3,098,732,587.95/81,524.12
  6. Step 6: Final answer
    x = 38,010.01

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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.