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Finding the Fourth Proportional to 72,227.94, 108,358.26 and 38,947.26

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Solution

The fourth proportional to 72,227.94, 108,358.26 and 38,947.26 is: 58,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,227.94 : 108,358.26 = 38,947.26 : x
  2. Step 2: Convert to fraction form
    72,227.94/108,358.26 = 38,947.26/x
  3. Step 3: Cross multiply
    72,227.94x = 108,358.26 × 38,947.26
  4. Step 4: Simplify right side
    72,227.94x = 4,220,257,325.37
  5. Step 5: Solve for x
    x = 4,220,257,325.37/72,227.94
  6. Step 6: Final answer
    x = 58,429.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.