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Finding the Fourth Proportional to 91,730.56, 126,580.80 and 50,896

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Solution

The fourth proportional to 91,730.56, 126,580.80 and 50,896 is: 70,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,730.56 : 126,580.80 = 50,896 : x
  2. Step 2: Convert to fraction form
    91,730.56/126,580.80 = 50,896/x
  3. Step 3: Cross multiply
    91,730.56x = 126,580.80 × 50,896
  4. Step 4: Simplify right side
    91,730.56x = 6,442,456,396.80
  5. Step 5: Solve for x
    x = 6,442,456,396.80/91,730.56
  6. Step 6: Final answer
    x = 70,232.39

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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.