Home / 54,305.32-81,407.49-21,047.08

Finding the Fourth Proportional to 54,305.32, 81,407.49 and 21,047.08

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Solution

The fourth proportional to 54,305.32, 81,407.49 and 21,047.08 is: 31,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,305.32 : 81,407.49 = 21,047.08 : x
  2. Step 2: Convert to fraction form
    54,305.32/81,407.49 = 21,047.08/x
  3. Step 3: Cross multiply
    54,305.32x = 81,407.49 × 21,047.08
  4. Step 4: Simplify right side
    54,305.32x = 1,713,389,954.63
  5. Step 5: Solve for x
    x = 1,713,389,954.63/54,305.32
  6. Step 6: Final answer
    x = 31,551.05

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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.