Home / 54,592.85-81,840.54-21,305.16

Finding the Fourth Proportional to 54,592.85, 81,840.54 and 21,305.16

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Solution

The fourth proportional to 54,592.85, 81,840.54 and 21,305.16 is: 31,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,592.85 : 81,840.54 = 21,305.16 : x
  2. Step 2: Convert to fraction form
    54,592.85/81,840.54 = 21,305.16/x
  3. Step 3: Cross multiply
    54,592.85x = 81,840.54 × 21,305.16
  4. Step 4: Simplify right side
    54,592.85x = 1,743,625,879.08
  5. Step 5: Solve for x
    x = 1,743,625,879.08/54,592.85
  6. Step 6: Final answer
    x = 31,938.72

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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.