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Finding the Fourth Proportional to 65,512.95, 98,269.43 and 30,520.95

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Solution

The fourth proportional to 65,512.95, 98,269.43 and 30,520.95 is: 45,781.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,512.95 : 98,269.43 = 30,520.95 : x
  2. Step 2: Convert to fraction form
    65,512.95/98,269.43 = 30,520.95/x
  3. Step 3: Cross multiply
    65,512.95x = 98,269.43 × 30,520.95
  4. Step 4: Simplify right side
    65,512.95x = 2,999,276,206.95
  5. Step 5: Solve for x
    x = 2,999,276,206.95/65,512.95
  6. Step 6: Final answer
    x = 45,781.43

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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.