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Finding the Fourth Proportional to 63,643.30, 95,436.15 and 28,564.90

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Solution

The fourth proportional to 63,643.30, 95,436.15 and 28,564.90 is: 42,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,643.30 : 95,436.15 = 28,564.90 : x
  2. Step 2: Convert to fraction form
    63,643.30/95,436.15 = 28,564.90/x
  3. Step 3: Cross multiply
    63,643.30x = 95,436.15 × 28,564.90
  4. Step 4: Simplify right side
    63,643.30x = 2,726,124,081.14
  5. Step 5: Solve for x
    x = 2,726,124,081.14/63,643.30
  6. Step 6: Final answer
    x = 42,834.42

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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.