Home / 91,871.02-126,789.33-51,587.47

Finding the Fourth Proportional to 91,871.02, 126,789.33 and 51,587.47

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Solution

The fourth proportional to 91,871.02, 126,789.33 and 51,587.47 is: 71,194.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,871.02 : 126,789.33 = 51,587.47 : x
  2. Step 2: Convert to fraction form
    91,871.02/126,789.33 = 51,587.47/x
  3. Step 3: Cross multiply
    91,871.02x = 126,789.33 × 51,587.47
  4. Step 4: Simplify right side
    91,871.02x = 6,540,740,757.70
  5. Step 5: Solve for x
    x = 6,540,740,757.70/91,871.02
  6. Step 6: Final answer
    x = 71,194.82

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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.