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Finding the Fourth Proportional to 65,393.46, 98,079.21 and 18,635.22

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Solution

The fourth proportional to 65,393.46, 98,079.21 and 18,635.22 is: 27,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,393.46 : 98,079.21 = 18,635.22 : x
  2. Step 2: Convert to fraction form
    65,393.46/98,079.21 = 18,635.22/x
  3. Step 3: Cross multiply
    65,393.46x = 98,079.21 × 18,635.22
  4. Step 4: Simplify right side
    65,393.46x = 1,827,727,655.78
  5. Step 5: Solve for x
    x = 1,827,727,655.78/65,393.46
  6. Step 6: Final answer
    x = 27,949.70

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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.