Home / 54,589.28-81,887.69-21,298.28

Finding the Fourth Proportional to 54,589.28, 81,887.69 and 21,298.28

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Solution

The fourth proportional to 54,589.28, 81,887.69 and 21,298.28 is: 31,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,589.28 : 81,887.69 = 21,298.28 : x
  2. Step 2: Convert to fraction form
    54,589.28/81,887.69 = 21,298.28/x
  3. Step 3: Cross multiply
    54,589.28x = 81,887.69 × 21,298.28
  4. Step 4: Simplify right side
    54,589.28x = 1,744,066,593.98
  5. Step 5: Solve for x
    x = 1,744,066,593.98/54,589.28
  6. Step 6: Final answer
    x = 31,948.89

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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.