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Finding the Fourth Proportional to 64,138.68, 96,203.46 and 19,760.82

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Solution

The fourth proportional to 64,138.68, 96,203.46 and 19,760.82 is: 29,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.68 : 96,203.46 = 19,760.82 : x
  2. Step 2: Convert to fraction form
    64,138.68/96,203.46 = 19,760.82/x
  3. Step 3: Cross multiply
    64,138.68x = 96,203.46 × 19,760.82
  4. Step 4: Simplify right side
    64,138.68x = 1,901,059,256.44
  5. Step 5: Solve for x
    x = 1,901,059,256.44/64,138.68
  6. Step 6: Final answer
    x = 29,639.83

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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.