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Finding the Fourth Proportional to 85,255.98, 127,879.43 and 26,091.69

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Solution

The fourth proportional to 85,255.98, 127,879.43 and 26,091.69 is: 39,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,255.98 : 127,879.43 = 26,091.69 : x
  2. Step 2: Convert to fraction form
    85,255.98/127,879.43 = 26,091.69/x
  3. Step 3: Cross multiply
    85,255.98x = 127,879.43 × 26,091.69
  4. Step 4: Simplify right side
    85,255.98x = 3,336,590,314.48
  5. Step 5: Solve for x
    x = 3,336,590,314.48/85,255.98
  6. Step 6: Final answer
    x = 39,136.14

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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.