Home / 54,496.89-81,748.98-21,214.80

Finding the Fourth Proportional to 54,496.89, 81,748.98 and 21,214.80

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Solution

The fourth proportional to 54,496.89, 81,748.98 and 21,214.80 is: 31,823.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,496.89 : 81,748.98 = 21,214.80 : x
  2. Step 2: Convert to fraction form
    54,496.89/81,748.98 = 21,214.80/x
  3. Step 3: Cross multiply
    54,496.89x = 81,748.98 × 21,214.80
  4. Step 4: Simplify right side
    54,496.89x = 1,734,288,260.90
  5. Step 5: Solve for x
    x = 1,734,288,260.90/54,496.89
  6. Step 6: Final answer
    x = 31,823.62

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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.