Home / 54,304.32-81,405.99-21,046.08

Finding the Fourth Proportional to 54,304.32, 81,405.99 and 21,046.08

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Solution

The fourth proportional to 54,304.32, 81,405.99 and 21,046.08 is: 31,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,304.32 : 81,405.99 = 21,046.08 : x
  2. Step 2: Convert to fraction form
    54,304.32/81,405.99 = 21,046.08/x
  3. Step 3: Cross multiply
    54,304.32x = 81,405.99 × 21,046.08
  4. Step 4: Simplify right side
    54,304.32x = 1,713,276,978.02
  5. Step 5: Solve for x
    x = 1,713,276,978.02/54,304.32
  6. Step 6: Final answer
    x = 31,549.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.