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Finding the Fourth Proportional to 65,512.68, 98,292.06 and 28,571.88

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Solution

The fourth proportional to 65,512.68, 98,292.06 and 28,571.88 is: 42,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,512.68 : 98,292.06 = 28,571.88 : x
  2. Step 2: Convert to fraction form
    65,512.68/98,292.06 = 28,571.88/x
  3. Step 3: Cross multiply
    65,512.68x = 98,292.06 × 28,571.88
  4. Step 4: Simplify right side
    65,512.68x = 2,808,388,943.27
  5. Step 5: Solve for x
    x = 2,808,388,943.27/65,512.68
  6. Step 6: Final answer
    x = 42,867.87

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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.