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Finding the Fourth Proportional to 63,624, 87,805.20 and 35,329.68

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Solution

The fourth proportional to 63,624, 87,805.20 and 35,329.68 is: 48,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,624 : 87,805.20 = 35,329.68 : x
  2. Step 2: Convert to fraction form
    63,624/87,805.20 = 35,329.68/x
  3. Step 3: Cross multiply
    63,624x = 87,805.20 × 35,329.68
  4. Step 4: Simplify right side
    63,624x = 3,102,129,618.34
  5. Step 5: Solve for x
    x = 3,102,129,618.34/63,624
  6. Step 6: Final answer
    x = 48,757.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.