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Finding the Fourth Proportional to 64,420.96, 89,496.16 and 63,844.24

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Solution

The fourth proportional to 64,420.96, 89,496.16 and 63,844.24 is: 88,694.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,420.96 : 89,496.16 = 63,844.24 : x
  2. Step 2: Convert to fraction form
    64,420.96/89,496.16 = 63,844.24/x
  3. Step 3: Cross multiply
    64,420.96x = 89,496.16 × 63,844.24
  4. Step 4: Simplify right side
    64,420.96x = 5,713,814,318.12
  5. Step 5: Solve for x
    x = 5,713,814,318.12/64,420.96
  6. Step 6: Final answer
    x = 88,694.96

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.