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Finding the Fourth Proportional to 91,162.53, 125,811.25 and 50,334.53

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Solution

The fourth proportional to 91,162.53, 125,811.25 and 50,334.53 is: 69,465.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,162.53 : 125,811.25 = 50,334.53 : x
  2. Step 2: Convert to fraction form
    91,162.53/125,811.25 = 50,334.53/x
  3. Step 3: Cross multiply
    91,162.53x = 125,811.25 × 50,334.53
  4. Step 4: Simplify right side
    91,162.53x = 6,332,650,137.46
  5. Step 5: Solve for x
    x = 6,332,650,137.46/91,162.53
  6. Step 6: Final answer
    x = 69,465.49

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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.