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Finding the Fourth Proportional to 88,019.28, 131,960.88 and 28,818

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Solution

The fourth proportional to 88,019.28, 131,960.88 and 28,818 is: 43,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,019.28 : 131,960.88 = 28,818 : x
  2. Step 2: Convert to fraction form
    88,019.28/131,960.88 = 28,818/x
  3. Step 3: Cross multiply
    88,019.28x = 131,960.88 × 28,818
  4. Step 4: Simplify right side
    88,019.28x = 3,802,848,639.84
  5. Step 5: Solve for x
    x = 3,802,848,639.84/88,019.28
  6. Step 6: Final answer
    x = 43,204.72

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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.