Home / 54,587.94-81,864.48-21,299.90

Finding the Fourth Proportional to 54,587.94, 81,864.48 and 21,299.90

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Solution

The fourth proportional to 54,587.94, 81,864.48 and 21,299.90 is: 31,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,587.94 : 81,864.48 = 21,299.90 : x
  2. Step 2: Convert to fraction form
    54,587.94/81,864.48 = 21,299.90/x
  3. Step 3: Cross multiply
    54,587.94x = 81,864.48 × 21,299.90
  4. Step 4: Simplify right side
    54,587.94x = 1,743,705,237.55
  5. Step 5: Solve for x
    x = 1,743,705,237.55/54,587.94
  6. Step 6: Final answer
    x = 31,943.05

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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.