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Finding the Fourth Proportional to 91,381.94, 126,101.22 and 51,099.02

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Solution

The fourth proportional to 91,381.94, 126,101.22 and 51,099.02 is: 70,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,381.94 : 126,101.22 = 51,099.02 : x
  2. Step 2: Convert to fraction form
    91,381.94/126,101.22 = 51,099.02/x
  3. Step 3: Cross multiply
    91,381.94x = 126,101.22 × 51,099.02
  4. Step 4: Simplify right side
    91,381.94x = 6,443,648,762.80
  5. Step 5: Solve for x
    x = 6,443,648,762.80/91,381.94
  6. Step 6: Final answer
    x = 70,513.37

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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.