Home / 54,243-81,313.20-40,895.28

Finding the Fourth Proportional to 54,243, 81,313.20 and 40,895.28

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Solution

The fourth proportional to 54,243, 81,313.20 and 40,895.28 is: 61,304.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,243 : 81,313.20 = 40,895.28 : x
  2. Step 2: Convert to fraction form
    54,243/81,313.20 = 40,895.28/x
  3. Step 3: Cross multiply
    54,243x = 81,313.20 × 40,895.28
  4. Step 4: Simplify right side
    54,243x = 3,325,326,081.70
  5. Step 5: Solve for x
    x = 3,325,326,081.70/54,243
  6. Step 6: Final answer
    x = 61,304.24

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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.