Home / 91,609.72-126,414.78-51,316.64

Finding the Fourth Proportional to 91,609.72, 126,414.78 and 51,316.64

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Solution

The fourth proportional to 91,609.72, 126,414.78 and 51,316.64 is: 70,813.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609.72 : 126,414.78 = 51,316.64 : x
  2. Step 2: Convert to fraction form
    91,609.72/126,414.78 = 51,316.64/x
  3. Step 3: Cross multiply
    91,609.72x = 126,414.78 × 51,316.64
  4. Step 4: Simplify right side
    91,609.72x = 6,487,181,755.94
  5. Step 5: Solve for x
    x = 6,487,181,755.94/91,609.72
  6. Step 6: Final answer
    x = 70,813.25

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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.