Home / 55,071.38-75,998.51-29,920.88

Finding the Fourth Proportional to 55,071.38, 75,998.51 and 29,920.88

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Solution

The fourth proportional to 55,071.38, 75,998.51 and 29,920.88 is: 41,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,071.38 : 75,998.51 = 29,920.88 : x
  2. Step 2: Convert to fraction form
    55,071.38/75,998.51 = 29,920.88/x
  3. Step 3: Cross multiply
    55,071.38x = 75,998.51 × 29,920.88
  4. Step 4: Simplify right side
    55,071.38x = 2,273,941,768.29
  5. Step 5: Solve for x
    x = 2,273,941,768.29/55,071.38
  6. Step 6: Final answer
    x = 41,290.81

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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.