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Finding the Fourth Proportional to 64,593.28, 89,221.40 and 49,393.63

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Solution

The fourth proportional to 64,593.28, 89,221.40 and 49,393.63 is: 68,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,593.28 : 89,221.40 = 49,393.63 : x
  2. Step 2: Convert to fraction form
    64,593.28/89,221.40 = 49,393.63/x
  3. Step 3: Cross multiply
    64,593.28x = 89,221.40 × 49,393.63
  4. Step 4: Simplify right side
    64,593.28x = 4,406,968,819.68
  5. Step 5: Solve for x
    x = 4,406,968,819.68/64,593.28
  6. Step 6: Final answer
    x = 68,226.43

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