Home / 91,625.40-126,450.78-51,338.52

Finding the Fourth Proportional to 91,625.40, 126,450.78 and 51,338.52

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Solution

The fourth proportional to 91,625.40, 126,450.78 and 51,338.52 is: 70,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,625.40 : 126,450.78 = 51,338.52 : x
  2. Step 2: Convert to fraction form
    91,625.40/126,450.78 = 51,338.52/x
  3. Step 3: Cross multiply
    91,625.40x = 126,450.78 × 51,338.52
  4. Step 4: Simplify right side
    91,625.40x = 6,491,795,898.05
  5. Step 5: Solve for x
    x = 6,491,795,898.05/91,625.40
  6. Step 6: Final answer
    x = 70,851.49

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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.