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Finding the Fourth Proportional to 63,789.39, 95,688.12 and 19,419.39

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Solution

The fourth proportional to 63,789.39, 95,688.12 and 19,419.39 is: 29,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,789.39 : 95,688.12 = 19,419.39 : x
  2. Step 2: Convert to fraction form
    63,789.39/95,688.12 = 19,419.39/x
  3. Step 3: Cross multiply
    63,789.39x = 95,688.12 × 19,419.39
  4. Step 4: Simplify right side
    63,789.39x = 1,858,204,920.65
  5. Step 5: Solve for x
    x = 1,858,204,920.65/63,789.39
  6. Step 6: Final answer
    x = 29,130.31

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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.