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Finding the Fourth Proportional to 63,338.72, 95,017.80 and 21,776

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Solution

The fourth proportional to 63,338.72, 95,017.80 and 21,776 is: 32,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,338.72 : 95,017.80 = 21,776 : x
  2. Step 2: Convert to fraction form
    63,338.72/95,017.80 = 21,776/x
  3. Step 3: Cross multiply
    63,338.72x = 95,017.80 × 21,776
  4. Step 4: Simplify right side
    63,338.72x = 2,069,107,612.80
  5. Step 5: Solve for x
    x = 2,069,107,612.80/63,338.72
  6. Step 6: Final answer
    x = 32,667.34

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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.