Home / 91,988.72-126,944.79-51,704.18

Finding the Fourth Proportional to 91,988.72, 126,944.79 and 51,704.18

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Solution

The fourth proportional to 91,988.72, 126,944.79 and 51,704.18 is: 71,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,988.72 : 126,944.79 = 51,704.18 : x
  2. Step 2: Convert to fraction form
    91,988.72/126,944.79 = 51,704.18/x
  3. Step 3: Cross multiply
    91,988.72x = 126,944.79 × 51,704.18
  4. Step 4: Simplify right side
    91,988.72x = 6,563,576,272.22
  5. Step 5: Solve for x
    x = 6,563,576,272.22/91,988.72
  6. Step 6: Final answer
    x = 71,351.97

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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.