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Finding the Fourth Proportional to 56,105.39, 77,399.34 and 33,431.66

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Solution

The fourth proportional to 56,105.39, 77,399.34 and 33,431.66 is: 46,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,105.39 : 77,399.34 = 33,431.66 : x
  2. Step 2: Convert to fraction form
    56,105.39/77,399.34 = 33,431.66/x
  3. Step 3: Cross multiply
    56,105.39x = 77,399.34 × 33,431.66
  4. Step 4: Simplify right side
    56,105.39x = 2,587,588,032.11
  5. Step 5: Solve for x
    x = 2,587,588,032.11/56,105.39
  6. Step 6: Final answer
    x = 46,120.14

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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.