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Finding the Fourth Proportional to 65,506.68, 98,260.05 and 20,531.53

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Solution

The fourth proportional to 65,506.68, 98,260.05 and 20,531.53 is: 30,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,506.68 : 98,260.05 = 20,531.53 : x
  2. Step 2: Convert to fraction form
    65,506.68/98,260.05 = 20,531.53/x
  3. Step 3: Cross multiply
    65,506.68x = 98,260.05 × 20,531.53
  4. Step 4: Simplify right side
    65,506.68x = 2,017,429,025.97
  5. Step 5: Solve for x
    x = 2,017,429,025.97/65,506.68
  6. Step 6: Final answer
    x = 30,797.30

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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.