Home / 54,071.12-81,039.72-30,626.48

Finding the Fourth Proportional to 54,071.12, 81,039.72 and 30,626.48

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Solution

The fourth proportional to 54,071.12, 81,039.72 and 30,626.48 is: 45,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,071.12 : 81,039.72 = 30,626.48 : x
  2. Step 2: Convert to fraction form
    54,071.12/81,039.72 = 30,626.48/x
  3. Step 3: Cross multiply
    54,071.12x = 81,039.72 × 30,626.48
  4. Step 4: Simplify right side
    54,071.12x = 2,481,961,363.79
  5. Step 5: Solve for x
    x = 2,481,961,363.79/54,071.12
  6. Step 6: Final answer
    x = 45,901.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.