Home / 54,001.20-74,521.86-30,128.88

Finding the Fourth Proportional to 54,001.20, 74,521.86 and 30,128.88

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Solution

The fourth proportional to 54,001.20, 74,521.86 and 30,128.88 is: 41,577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,001.20 : 74,521.86 = 30,128.88 : x
  2. Step 2: Convert to fraction form
    54,001.20/74,521.86 = 30,128.88/x
  3. Step 3: Cross multiply
    54,001.20x = 74,521.86 × 30,128.88
  4. Step 4: Simplify right side
    54,001.20x = 2,245,260,177.32
  5. Step 5: Solve for x
    x = 2,245,260,177.32/54,001.20
  6. Step 6: Final answer
    x = 41,577.97

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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.