Home / 54,129.16-74,698.81-30,257.15

Finding the Fourth Proportional to 54,129.16, 74,698.81 and 30,257.15

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Solution

The fourth proportional to 54,129.16, 74,698.81 and 30,257.15 is: 41,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,129.16 : 74,698.81 = 30,257.15 : x
  2. Step 2: Convert to fraction form
    54,129.16/74,698.81 = 30,257.15/x
  3. Step 3: Cross multiply
    54,129.16x = 74,698.81 × 30,257.15
  4. Step 4: Simplify right side
    54,129.16x = 2,260,172,649.85
  5. Step 5: Solve for x
    x = 2,260,172,649.85/54,129.16
  6. Step 6: Final answer
    x = 41,755.18

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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.