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Finding the Fourth Proportional to 91,950.40, 126,891.66 and 51,664.13

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Solution

The fourth proportional to 91,950.40, 126,891.66 and 51,664.13 is: 71,296.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,950.40 : 126,891.66 = 51,664.13 : x
  2. Step 2: Convert to fraction form
    91,950.40/126,891.66 = 51,664.13/x
  3. Step 3: Cross multiply
    91,950.40x = 126,891.66 × 51,664.13
  4. Step 4: Simplify right side
    91,950.40x = 6,555,747,218.16
  5. Step 5: Solve for x
    x = 6,555,747,218.16/91,950.40
  6. Step 6: Final answer
    x = 71,296.56

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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.