Home / 54,386.20-81,593.70-19,322.20

Finding the Fourth Proportional to 54,386.20, 81,593.70 and 19,322.20

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Solution

The fourth proportional to 54,386.20, 81,593.70 and 19,322.20 is: 28,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,386.20 : 81,593.70 = 19,322.20 : x
  2. Step 2: Convert to fraction form
    54,386.20/81,593.70 = 19,322.20/x
  3. Step 3: Cross multiply
    54,386.20x = 81,593.70 × 19,322.20
  4. Step 4: Simplify right side
    54,386.20x = 1,576,569,790.14
  5. Step 5: Solve for x
    x = 1,576,569,790.14/54,386.20
  6. Step 6: Final answer
    x = 28,988.42

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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.