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Finding the Fourth Proportional to 91,666, 126,504.06 and 51,392.68

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Solution

The fourth proportional to 91,666, 126,504.06 and 51,392.68 is: 70,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,666 : 126,504.06 = 51,392.68 : x
  2. Step 2: Convert to fraction form
    91,666/126,504.06 = 51,392.68/x
  3. Step 3: Cross multiply
    91,666x = 126,504.06 × 51,392.68
  4. Step 4: Simplify right side
    91,666x = 6,501,382,674.28
  5. Step 5: Solve for x
    x = 6,501,382,674.28/91,666
  6. Step 6: Final answer
    x = 70,924.69

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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.