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Finding the Fourth Proportional to 64,764.69, 89,363.41 and 36,083.62

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Solution

The fourth proportional to 64,764.69, 89,363.41 and 36,083.62 is: 49,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,764.69 : 89,363.41 = 36,083.62 : x
  2. Step 2: Convert to fraction form
    64,764.69/89,363.41 = 36,083.62/x
  3. Step 3: Cross multiply
    64,764.69x = 89,363.41 × 36,083.62
  4. Step 4: Simplify right side
    64,764.69x = 3,224,555,328.34
  5. Step 5: Solve for x
    x = 3,224,555,328.34/64,764.69
  6. Step 6: Final answer
    x = 49,788.79

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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.