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Finding the Fourth Proportional to 65,740.56, 98,532.96 and 30,171.90

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Solution

The fourth proportional to 65,740.56, 98,532.96 and 30,171.90 is: 45,222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740.56 : 98,532.96 = 30,171.90 : x
  2. Step 2: Convert to fraction form
    65,740.56/98,532.96 = 30,171.90/x
  3. Step 3: Cross multiply
    65,740.56x = 98,532.96 × 30,171.90
  4. Step 4: Simplify right side
    65,740.56x = 2,972,926,615.82
  5. Step 5: Solve for x
    x = 2,972,926,615.82/65,740.56
  6. Step 6: Final answer
    x = 45,222.11

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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.