Home / 54,321.62-74,967.30-30,125.36

Finding the Fourth Proportional to 54,321.62, 74,967.30 and 30,125.36

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Solution

The fourth proportional to 54,321.62, 74,967.30 and 30,125.36 is: 41,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.62 : 74,967.30 = 30,125.36 : x
  2. Step 2: Convert to fraction form
    54,321.62/74,967.30 = 30,125.36/x
  3. Step 3: Cross multiply
    54,321.62x = 74,967.30 × 30,125.36
  4. Step 4: Simplify right side
    54,321.62x = 2,258,416,900.73
  5. Step 5: Solve for x
    x = 2,258,416,900.73/54,321.62
  6. Step 6: Final answer
    x = 41,574.92

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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.