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Finding the Fourth Proportional to 90,805.92, 136,248.05 and 34,662.89

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Solution

The fourth proportional to 90,805.92, 136,248.05 and 34,662.89 is: 52,009.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,805.92 : 136,248.05 = 34,662.89 : x
  2. Step 2: Convert to fraction form
    90,805.92/136,248.05 = 34,662.89/x
  3. Step 3: Cross multiply
    90,805.92x = 136,248.05 × 34,662.89
  4. Step 4: Simplify right side
    90,805.92x = 4,722,751,169.86
  5. Step 5: Solve for x
    x = 4,722,751,169.86/90,805.92
  6. Step 6: Final answer
    x = 52,009.29

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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.