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Finding the Fourth Proportional to 75,100.28, 103,627.50 and 48,245

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Solution

The fourth proportional to 75,100.28, 103,627.50 and 48,245 is: 66,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,100.28 : 103,627.50 = 48,245 : x
  2. Step 2: Convert to fraction form
    75,100.28/103,627.50 = 48,245/x
  3. Step 3: Cross multiply
    75,100.28x = 103,627.50 × 48,245
  4. Step 4: Simplify right side
    75,100.28x = 4,999,508,737.50
  5. Step 5: Solve for x
    x = 4,999,508,737.50/75,100.28
  6. Step 6: Final answer
    x = 66,571.11

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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.