Home / 54,638.34-81,968.40-17,207.85

Finding the Fourth Proportional to 54,638.34, 81,968.40 and 17,207.85

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Solution

The fourth proportional to 54,638.34, 81,968.40 and 17,207.85 is: 25,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,638.34 : 81,968.40 = 17,207.85 : x
  2. Step 2: Convert to fraction form
    54,638.34/81,968.40 = 17,207.85/x
  3. Step 3: Cross multiply
    54,638.34x = 81,968.40 × 17,207.85
  4. Step 4: Simplify right side
    54,638.34x = 1,410,499,931.94
  5. Step 5: Solve for x
    x = 1,410,499,931.94/54,638.34
  6. Step 6: Final answer
    x = 25,815.20

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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.