Home / 47,138.64-65,035.04-29,227.20

Finding the Fourth Proportional to 47,138.64, 65,035.04 and 29,227.20

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Solution

The fourth proportional to 47,138.64, 65,035.04 and 29,227.20 is: 40,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,138.64 : 65,035.04 = 29,227.20 : x
  2. Step 2: Convert to fraction form
    47,138.64/65,035.04 = 29,227.20/x
  3. Step 3: Cross multiply
    47,138.64x = 65,035.04 × 29,227.20
  4. Step 4: Simplify right side
    47,138.64x = 1,900,792,121.09
  5. Step 5: Solve for x
    x = 1,900,792,121.09/47,138.64
  6. Step 6: Final answer
    x = 40,323.44

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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.