Home / 54,374.10-81,431.55-33,378.90

Finding the Fourth Proportional to 54,374.10, 81,431.55 and 33,378.90

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Solution

The fourth proportional to 54,374.10, 81,431.55 and 33,378.90 is: 49,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,374.10 : 81,431.55 = 33,378.90 : x
  2. Step 2: Convert to fraction form
    54,374.10/81,431.55 = 33,378.90/x
  3. Step 3: Cross multiply
    54,374.10x = 81,431.55 × 33,378.90
  4. Step 4: Simplify right side
    54,374.10x = 2,718,095,564.30
  5. Step 5: Solve for x
    x = 2,718,095,564.30/54,374.10
  6. Step 6: Final answer
    x = 49,988.79

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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.