Home / 54,705.38-81,999.74-28,373.90

Finding the Fourth Proportional to 54,705.38, 81,999.74 and 28,373.90

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Solution

The fourth proportional to 54,705.38, 81,999.74 and 28,373.90 is: 42,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,705.38 : 81,999.74 = 28,373.90 : x
  2. Step 2: Convert to fraction form
    54,705.38/81,999.74 = 28,373.90/x
  3. Step 3: Cross multiply
    54,705.38x = 81,999.74 × 28,373.90
  4. Step 4: Simplify right side
    54,705.38x = 2,326,652,083.72
  5. Step 5: Solve for x
    x = 2,326,652,083.72/54,705.38
  6. Step 6: Final answer
    x = 42,530.59

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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.