Home / 54,428.12-81,641.33-38,351.19

Finding the Fourth Proportional to 54,428.12, 81,641.33 and 38,351.19

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Solution

The fourth proportional to 54,428.12, 81,641.33 and 38,351.19 is: 57,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,428.12 : 81,641.33 = 38,351.19 : x
  2. Step 2: Convert to fraction form
    54,428.12/81,641.33 = 38,351.19/x
  3. Step 3: Cross multiply
    54,428.12x = 81,641.33 × 38,351.19
  4. Step 4: Simplify right side
    54,428.12x = 3,131,041,558.72
  5. Step 5: Solve for x
    x = 3,131,041,558.72/54,428.12
  6. Step 6: Final answer
    x = 57,526.18

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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.