Home / 54,583.12-75,318.60-30,718

Finding the Fourth Proportional to 54,583.12, 75,318.60 and 30,718

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Solution

The fourth proportional to 54,583.12, 75,318.60 and 30,718 is: 42,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,583.12 : 75,318.60 = 30,718 : x
  2. Step 2: Convert to fraction form
    54,583.12/75,318.60 = 30,718/x
  3. Step 3: Cross multiply
    54,583.12x = 75,318.60 × 30,718
  4. Step 4: Simplify right side
    54,583.12x = 2,313,636,754.80
  5. Step 5: Solve for x
    x = 2,313,636,754.80/54,583.12
  6. Step 6: Final answer
    x = 42,387.40

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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.