Home / 85,279.06-127,918.88-26,114.47

Finding the Fourth Proportional to 85,279.06, 127,918.88 and 26,114.47

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Solution

The fourth proportional to 85,279.06, 127,918.88 and 26,114.47 is: 39,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.06 : 127,918.88 = 26,114.47 : x
  2. Step 2: Convert to fraction form
    85,279.06/127,918.88 = 26,114.47/x
  3. Step 3: Cross multiply
    85,279.06x = 127,918.88 × 26,114.47
  4. Step 4: Simplify right side
    85,279.06x = 3,340,533,179.89
  5. Step 5: Solve for x
    x = 3,340,533,179.89/85,279.06
  6. Step 6: Final answer
    x = 39,171.79

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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.