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Finding the Fourth Proportional to 65,755.88, 98,607.76 and 28,318.76

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Solution

The fourth proportional to 65,755.88, 98,607.76 and 28,318.76 is: 42,466.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,755.88 : 98,607.76 = 28,318.76 : x
  2. Step 2: Convert to fraction form
    65,755.88/98,607.76 = 28,318.76/x
  3. Step 3: Cross multiply
    65,755.88x = 98,607.76 × 28,318.76
  4. Step 4: Simplify right side
    65,755.88x = 2,792,449,489.58
  5. Step 5: Solve for x
    x = 2,792,449,489.58/65,755.88
  6. Step 6: Final answer
    x = 42,466.92

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1.5x scale

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.