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Finding the Fourth Proportional to 85,219.73, 127,829.34 and 25,252.86

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Solution

The fourth proportional to 85,219.73, 127,829.34 and 25,252.86 is: 37,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,219.73 : 127,829.34 = 25,252.86 : x
  2. Step 2: Convert to fraction form
    85,219.73/127,829.34 = 25,252.86/x
  3. Step 3: Cross multiply
    85,219.73x = 127,829.34 × 25,252.86
  4. Step 4: Simplify right side
    85,219.73x = 3,228,056,426.91
  5. Step 5: Solve for x
    x = 3,228,056,426.91/85,219.73
  6. Step 6: Final answer
    x = 37,879.22

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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.