Home / 54,287.21-74,915.93-30,414.08

Finding the Fourth Proportional to 54,287.21, 74,915.93 and 30,414.08

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Solution

The fourth proportional to 54,287.21, 74,915.93 and 30,414.08 is: 41,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,287.21 : 74,915.93 = 30,414.08 : x
  2. Step 2: Convert to fraction form
    54,287.21/74,915.93 = 30,414.08/x
  3. Step 3: Cross multiply
    54,287.21x = 74,915.93 × 30,414.08
  4. Step 4: Simplify right side
    54,287.21x = 2,278,499,088.29
  5. Step 5: Solve for x
    x = 2,278,499,088.29/54,287.21
  6. Step 6: Final answer
    x = 41,971.20

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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.