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Finding the Fourth Proportional to 90,661.68, 125,110.44 and 50,374.44

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Solution

The fourth proportional to 90,661.68, 125,110.44 and 50,374.44 is: 69,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,661.68 : 125,110.44 = 50,374.44 : x
  2. Step 2: Convert to fraction form
    90,661.68/125,110.44 = 50,374.44/x
  3. Step 3: Cross multiply
    90,661.68x = 125,110.44 × 50,374.44
  4. Step 4: Simplify right side
    90,661.68x = 6,302,368,353.15
  5. Step 5: Solve for x
    x = 6,302,368,353.15/90,661.68
  6. Step 6: Final answer
    x = 69,515.24

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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.