Home / 81,524.74-112,456.36-51,262.10

Finding the Fourth Proportional to 81,524.74, 112,456.36 and 51,262.10

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Solution

The fourth proportional to 81,524.74, 112,456.36 and 51,262.10 is: 70,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,524.74 : 112,456.36 = 51,262.10 : x
  2. Step 2: Convert to fraction form
    81,524.74/112,456.36 = 51,262.10/x
  3. Step 3: Cross multiply
    81,524.74x = 112,456.36 × 51,262.10
  4. Step 4: Simplify right side
    81,524.74x = 5,764,749,171.96
  5. Step 5: Solve for x
    x = 5,764,749,171.96/81,524.74
  6. Step 6: Final answer
    x = 70,711.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.