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Finding the Fourth Proportional to 85,250.79, 127,871.55 and 26,086.44

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Solution

The fourth proportional to 85,250.79, 127,871.55 and 26,086.44 is: 39,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,250.79 : 127,871.55 = 26,086.44 : x
  2. Step 2: Convert to fraction form
    85,250.79/127,871.55 = 26,086.44/x
  3. Step 3: Cross multiply
    85,250.79x = 127,871.55 × 26,086.44
  4. Step 4: Simplify right side
    85,250.79x = 3,335,713,516.78
  5. Step 5: Solve for x
    x = 3,335,713,516.78/85,250.79
  6. Step 6: Final answer
    x = 39,128.24

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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.