Home / 91,982.52-126,928.02-51,693.12

Finding the Fourth Proportional to 91,982.52, 126,928.02 and 51,693.12

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Solution

The fourth proportional to 91,982.52, 126,928.02 and 51,693.12 is: 71,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,982.52 : 126,928.02 = 51,693.12 : x
  2. Step 2: Convert to fraction form
    91,982.52/126,928.02 = 51,693.12/x
  3. Step 3: Cross multiply
    91,982.52x = 126,928.02 × 51,693.12
  4. Step 4: Simplify right side
    91,982.52x = 6,561,305,369.22
  5. Step 5: Solve for x
    x = 6,561,305,369.22/91,982.52
  6. Step 6: Final answer
    x = 71,332.09

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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.