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Finding the Fourth Proportional to 64,576.73, 96,865.10 and 20,203.87

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Solution

The fourth proportional to 64,576.73, 96,865.10 and 20,203.87 is: 30,305.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,576.73 : 96,865.10 = 20,203.87 : x
  2. Step 2: Convert to fraction form
    64,576.73/96,865.10 = 20,203.87/x
  3. Step 3: Cross multiply
    64,576.73x = 96,865.10 × 20,203.87
  4. Step 4: Simplify right side
    64,576.73x = 1,957,049,887.94
  5. Step 5: Solve for x
    x = 1,957,049,887.94/64,576.73
  6. Step 6: Final answer
    x = 30,305.81

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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.