Home / 54,143.12-74,711.40-30,269

Finding the Fourth Proportional to 54,143.12, 74,711.40 and 30,269

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Solution

The fourth proportional to 54,143.12, 74,711.40 and 30,269 is: 41,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,143.12 : 74,711.40 = 30,269 : x
  2. Step 2: Convert to fraction form
    54,143.12/74,711.40 = 30,269/x
  3. Step 3: Cross multiply
    54,143.12x = 74,711.40 × 30,269
  4. Step 4: Simplify right side
    54,143.12x = 2,261,439,366.60
  5. Step 5: Solve for x
    x = 2,261,439,366.60/54,143.12
  6. Step 6: Final answer
    x = 41,767.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.