Home / 54,389.26-81,534.68-19,320.72

Finding the Fourth Proportional to 54,389.26, 81,534.68 and 19,320.72

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Solution

The fourth proportional to 54,389.26, 81,534.68 and 19,320.72 is: 28,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,389.26 : 81,534.68 = 19,320.72 : x
  2. Step 2: Convert to fraction form
    54,389.26/81,534.68 = 19,320.72/x
  3. Step 3: Cross multiply
    54,389.26x = 81,534.68 × 19,320.72
  4. Step 4: Simplify right side
    54,389.26x = 1,575,308,722.57
  5. Step 5: Solve for x
    x = 1,575,308,722.57/54,389.26
  6. Step 6: Final answer
    x = 28,963.60

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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.