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Finding the Fourth Proportional to 65,793, 90,794.34 and 35,985

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Solution

The fourth proportional to 65,793, 90,794.34 and 35,985 is: 49,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,793 : 90,794.34 = 35,985 : x
  2. Step 2: Convert to fraction form
    65,793/90,794.34 = 35,985/x
  3. Step 3: Cross multiply
    65,793x = 90,794.34 × 35,985
  4. Step 4: Simplify right side
    65,793x = 3,267,234,324.90
  5. Step 5: Solve for x
    x = 3,267,234,324.90/65,793
  6. Step 6: Final answer
    x = 49,659.30

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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.