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Finding the Fourth Proportional to 85,239.60, 127,859.22 and 22,910.10

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Solution

The fourth proportional to 85,239.60, 127,859.22 and 22,910.10 is: 34,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,239.60 : 127,859.22 = 22,910.10 : x
  2. Step 2: Convert to fraction form
    85,239.60/127,859.22 = 22,910.10/x
  3. Step 3: Cross multiply
    85,239.60x = 127,859.22 × 22,910.10
  4. Step 4: Simplify right side
    85,239.60x = 2,929,267,516.12
  5. Step 5: Solve for x
    x = 2,929,267,516.12/85,239.60
  6. Step 6: Final answer
    x = 34,365.10

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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.