Home / 82,278.39-113,556.30-48,305.61

Finding the Fourth Proportional to 82,278.39, 113,556.30 and 48,305.61

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Solution

The fourth proportional to 82,278.39, 113,556.30 and 48,305.61 is: 66,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,278.39 : 113,556.30 = 48,305.61 : x
  2. Step 2: Convert to fraction form
    82,278.39/113,556.30 = 48,305.61/x
  3. Step 3: Cross multiply
    82,278.39x = 113,556.30 × 48,305.61
  4. Step 4: Simplify right side
    82,278.39x = 5,485,406,340.84
  5. Step 5: Solve for x
    x = 5,485,406,340.84/82,278.39
  6. Step 6: Final answer
    x = 66,668.86

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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.