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Finding the Fourth Proportional to 64,251.60, 88,605 and 50,099.28

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Solution

The fourth proportional to 64,251.60, 88,605 and 50,099.28 is: 69,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,251.60 : 88,605 = 50,099.28 : x
  2. Step 2: Convert to fraction form
    64,251.60/88,605 = 50,099.28/x
  3. Step 3: Cross multiply
    64,251.60x = 88,605 × 50,099.28
  4. Step 4: Simplify right side
    64,251.60x = 4,439,046,704.40
  5. Step 5: Solve for x
    x = 4,439,046,704.40/64,251.60
  6. Step 6: Final answer
    x = 69,088.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.