Home / 54,335.13-81,482.73-18,787.34

Finding the Fourth Proportional to 54,335.13, 81,482.73 and 18,787.34

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Solution

The fourth proportional to 54,335.13, 81,482.73 and 18,787.34 is: 28,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,335.13 : 81,482.73 = 18,787.34 : x
  2. Step 2: Convert to fraction form
    54,335.13/81,482.73 = 18,787.34/x
  3. Step 3: Cross multiply
    54,335.13x = 81,482.73 × 18,787.34
  4. Step 4: Simplify right side
    54,335.13x = 1,530,843,345.22
  5. Step 5: Solve for x
    x = 1,530,843,345.22/54,335.13
  6. Step 6: Final answer
    x = 28,174.10

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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.