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Finding the Fourth Proportional to 64,267.28, 96,404.99 and 19,890.30

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Solution

The fourth proportional to 64,267.28, 96,404.99 and 19,890.30 is: 29,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,267.28 : 96,404.99 = 19,890.30 : x
  2. Step 2: Convert to fraction form
    64,267.28/96,404.99 = 19,890.30/x
  3. Step 3: Cross multiply
    64,267.28x = 96,404.99 × 19,890.30
  4. Step 4: Simplify right side
    64,267.28x = 1,917,524,172.60
  5. Step 5: Solve for x
    x = 1,917,524,172.60/64,267.28
  6. Step 6: Final answer
    x = 29,836.71

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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.