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Finding the Fourth Proportional to 63,438, 95,153.34 and 19,063.80

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Solution

The fourth proportional to 63,438, 95,153.34 and 19,063.80 is: 28,594.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,438 : 95,153.34 = 19,063.80 : x
  2. Step 2: Convert to fraction form
    63,438/95,153.34 = 19,063.80/x
  3. Step 3: Cross multiply
    63,438x = 95,153.34 × 19,063.80
  4. Step 4: Simplify right side
    63,438x = 1,813,984,243.09
  5. Step 5: Solve for x
    x = 1,813,984,243.09/63,438
  6. Step 6: Final answer
    x = 28,594.60

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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.