Home / 89,638.85-134,480.25-27,309.35

Finding the Fourth Proportional to 89,638.85, 134,480.25 and 27,309.35

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Solution

The fourth proportional to 89,638.85, 134,480.25 and 27,309.35 is: 40,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,638.85 : 134,480.25 = 27,309.35 : x
  2. Step 2: Convert to fraction form
    89,638.85/134,480.25 = 27,309.35/x
  3. Step 3: Cross multiply
    89,638.85x = 134,480.25 × 27,309.35
  4. Step 4: Simplify right side
    89,638.85x = 3,672,568,551.54
  5. Step 5: Solve for x
    x = 3,672,568,551.54/89,638.85
  6. Step 6: Final answer
    x = 40,970.72

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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.