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Finding the Fourth Proportional to 65,397.20, 98,096.70 and 18,650.08

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Solution

The fourth proportional to 65,397.20, 98,096.70 and 18,650.08 is: 27,975.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,397.20 : 98,096.70 = 18,650.08 : x
  2. Step 2: Convert to fraction form
    65,397.20/98,096.70 = 18,650.08/x
  3. Step 3: Cross multiply
    65,397.20x = 98,096.70 × 18,650.08
  4. Step 4: Simplify right side
    65,397.20x = 1,829,511,302.74
  5. Step 5: Solve for x
    x = 1,829,511,302.74/65,397.20
  6. Step 6: Final answer
    x = 27,975.38

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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.