Home / 54,432-75,110.40-30,561.36

Finding the Fourth Proportional to 54,432, 75,110.40 and 30,561.36

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Solution

The fourth proportional to 54,432, 75,110.40 and 30,561.36 is: 42,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,432 : 75,110.40 = 30,561.36 : x
  2. Step 2: Convert to fraction form
    54,432/75,110.40 = 30,561.36/x
  3. Step 3: Cross multiply
    54,432x = 75,110.40 × 30,561.36
  4. Step 4: Simplify right side
    54,432x = 2,295,475,974.14
  5. Step 5: Solve for x
    x = 2,295,475,974.14/54,432
  6. Step 6: Final answer
    x = 42,171.44

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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.