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Finding the Fourth Proportional to 91,744, 126,606.95 and 53,529.82

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Solution

The fourth proportional to 91,744, 126,606.95 and 53,529.82 is: 73,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,744 : 126,606.95 = 53,529.82 : x
  2. Step 2: Convert to fraction form
    91,744/126,606.95 = 53,529.82/x
  3. Step 3: Cross multiply
    91,744x = 126,606.95 × 53,529.82
  4. Step 4: Simplify right side
    91,744x = 6,777,247,244.25
  5. Step 5: Solve for x
    x = 6,777,247,244.25/91,744
  6. Step 6: Final answer
    x = 73,871.29

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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.