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Finding the Fourth Proportional to 80,804.16, 111,509.28 and 47,269.44

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Solution

The fourth proportional to 80,804.16, 111,509.28 and 47,269.44 is: 65,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,804.16 : 111,509.28 = 47,269.44 : x
  2. Step 2: Convert to fraction form
    80,804.16/111,509.28 = 47,269.44/x
  3. Step 3: Cross multiply
    80,804.16x = 111,509.28 × 47,269.44
  4. Step 4: Simplify right side
    80,804.16x = 5,270,981,220.40
  5. Step 5: Solve for x
    x = 5,270,981,220.40/80,804.16
  6. Step 6: Final answer
    x = 65,231.56

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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.