Home / 91,961.26-126,913.89-51,676.90

Finding the Fourth Proportional to 91,961.26, 126,913.89 and 51,676.90

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Solution

The fourth proportional to 91,961.26, 126,913.89 and 51,676.90 is: 71,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,961.26 : 126,913.89 = 51,676.90 : x
  2. Step 2: Convert to fraction form
    91,961.26/126,913.89 = 51,676.90/x
  3. Step 3: Cross multiply
    91,961.26x = 126,913.89 × 51,676.90
  4. Step 4: Simplify right side
    91,961.26x = 6,558,516,402.14
  5. Step 5: Solve for x
    x = 6,558,516,402.14/91,961.26
  6. Step 6: Final answer
    x = 71,318.25

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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.