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Finding the Fourth Proportional to 69,093.36, 103,101.18 and 61,646.64

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Solution

The fourth proportional to 69,093.36, 103,101.18 and 61,646.64 is: 91,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,093.36 : 103,101.18 = 61,646.64 : x
  2. Step 2: Convert to fraction form
    69,093.36/103,101.18 = 61,646.64/x
  3. Step 3: Cross multiply
    69,093.36x = 103,101.18 × 61,646.64
  4. Step 4: Simplify right side
    69,093.36x = 6,355,841,327.04
  5. Step 5: Solve for x
    x = 6,355,841,327.04/69,093.36
  6. Step 6: Final answer
    x = 91,989.18

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.