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Finding the Fourth Proportional to 91,936, 126,873.35 and 51,103.95

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Solution

The fourth proportional to 91,936, 126,873.35 and 51,103.95 is: 70,524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,936 : 126,873.35 = 51,103.95 : x
  2. Step 2: Convert to fraction form
    91,936/126,873.35 = 51,103.95/x
  3. Step 3: Cross multiply
    91,936x = 126,873.35 × 51,103.95
  4. Step 4: Simplify right side
    91,936x = 6,483,729,334.73
  5. Step 5: Solve for x
    x = 6,483,729,334.73/91,936
  6. Step 6: Final answer
    x = 70,524.38

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1.5x scale

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.