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Finding the Fourth Proportional to 70,759.52, 97,662.09 and 40,565.11

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Solution

The fourth proportional to 70,759.52, 97,662.09 and 40,565.11 is: 55,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,759.52 : 97,662.09 = 40,565.11 : x
  2. Step 2: Convert to fraction form
    70,759.52/97,662.09 = 40,565.11/x
  3. Step 3: Cross multiply
    70,759.52x = 97,662.09 × 40,565.11
  4. Step 4: Simplify right side
    70,759.52x = 3,961,673,220.85
  5. Step 5: Solve for x
    x = 3,961,673,220.85/70,759.52
  6. Step 6: Final answer
    x = 55,987.85

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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.