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Finding the Fourth Proportional to 65,708.62, 98,372.98 and 38,608.99

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Solution

The fourth proportional to 65,708.62, 98,372.98 and 38,608.99 is: 57,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,708.62 : 98,372.98 = 38,608.99 : x
  2. Step 2: Convert to fraction form
    65,708.62/98,372.98 = 38,608.99/x
  3. Step 3: Cross multiply
    65,708.62x = 98,372.98 × 38,608.99
  4. Step 4: Simplify right side
    65,708.62x = 3,798,081,203.42
  5. Step 5: Solve for x
    x = 3,798,081,203.42/65,708.62
  6. Step 6: Final answer
    x = 57,801.87

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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.