Home / 85,279.31-127,919.26-26,114.72

Finding the Fourth Proportional to 85,279.31, 127,919.26 and 26,114.72

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Solution

The fourth proportional to 85,279.31, 127,919.26 and 26,114.72 is: 39,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.31 : 127,919.26 = 26,114.72 : x
  2. Step 2: Convert to fraction form
    85,279.31/127,919.26 = 26,114.72/x
  3. Step 3: Cross multiply
    85,279.31x = 127,919.26 × 26,114.72
  4. Step 4: Simplify right side
    85,279.31x = 3,340,574,952.62
  5. Step 5: Solve for x
    x = 3,340,574,952.62/85,279.31
  6. Step 6: Final answer
    x = 39,172.16

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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.