Home / 85,279.92-127,920.18-26,115.34

Finding the Fourth Proportional to 85,279.92, 127,920.18 and 26,115.34

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Solution

The fourth proportional to 85,279.92, 127,920.18 and 26,115.34 is: 39,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.92 : 127,920.18 = 26,115.34 : x
  2. Step 2: Convert to fraction form
    85,279.92/127,920.18 = 26,115.34/x
  3. Step 3: Cross multiply
    85,279.92x = 127,920.18 × 26,115.34
  4. Step 4: Simplify right side
    85,279.92x = 3,340,678,993.56
  5. Step 5: Solve for x
    x = 3,340,678,993.56/85,279.92
  6. Step 6: Final answer
    x = 39,173.10

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1.5x scale

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.