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Finding the Fourth Proportional to 65,876.98, 90,910.13 and 35,662.29

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Solution

The fourth proportional to 65,876.98, 90,910.13 and 35,662.29 is: 49,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,876.98 : 90,910.13 = 35,662.29 : x
  2. Step 2: Convert to fraction form
    65,876.98/90,910.13 = 35,662.29/x
  3. Step 3: Cross multiply
    65,876.98x = 90,910.13 × 35,662.29
  4. Step 4: Simplify right side
    65,876.98x = 3,242,063,241.69
  5. Step 5: Solve for x
    x = 3,242,063,241.69/65,876.98
  6. Step 6: Final answer
    x = 49,213.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.