Home / 55,081.38-76,012.90-29,930.88

Finding the Fourth Proportional to 55,081.38, 76,012.90 and 29,930.88

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Solution

The fourth proportional to 55,081.38, 76,012.90 and 29,930.88 is: 41,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.38 : 76,012.90 = 29,930.88 : x
  2. Step 2: Convert to fraction form
    55,081.38/76,012.90 = 29,930.88/x
  3. Step 3: Cross multiply
    55,081.38x = 76,012.90 × 29,930.88
  4. Step 4: Simplify right side
    55,081.38x = 2,275,132,988.35
  5. Step 5: Solve for x
    x = 2,275,132,988.35/55,081.38
  6. Step 6: Final answer
    x = 41,304.94

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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.