Home / 91,939.05-126,845.19-51,647.22

Finding the Fourth Proportional to 91,939.05, 126,845.19 and 51,647.22

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Solution

The fourth proportional to 91,939.05, 126,845.19 and 51,647.22 is: 71,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,939.05 : 126,845.19 = 51,647.22 : x
  2. Step 2: Convert to fraction form
    91,939.05/126,845.19 = 51,647.22/x
  3. Step 3: Cross multiply
    91,939.05x = 126,845.19 × 51,647.22
  4. Step 4: Simplify right side
    91,939.05x = 6,551,201,433.87
  5. Step 5: Solve for x
    x = 6,551,201,433.87/91,939.05
  6. Step 6: Final answer
    x = 71,255.92

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1.5x scale

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.