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Finding the Fourth Proportional to 63,693.40, 95,515.80 and 19,305.40

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Solution

The fourth proportional to 63,693.40, 95,515.80 and 19,305.40 is: 28,950.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,693.40 : 95,515.80 = 19,305.40 : x
  2. Step 2: Convert to fraction form
    63,693.40/95,515.80 = 19,305.40/x
  3. Step 3: Cross multiply
    63,693.40x = 95,515.80 × 19,305.40
  4. Step 4: Simplify right side
    63,693.40x = 1,843,970,725.32
  5. Step 5: Solve for x
    x = 1,843,970,725.32/63,693.40
  6. Step 6: Final answer
    x = 28,950.73

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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.