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Finding the Fourth Proportional to 55,965.63, 83,928.29 and 18,518.79

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Solution

The fourth proportional to 55,965.63, 83,928.29 and 18,518.79 is: 27,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,965.63 : 83,928.29 = 18,518.79 : x
  2. Step 2: Convert to fraction form
    55,965.63/83,928.29 = 18,518.79/x
  3. Step 3: Cross multiply
    55,965.63x = 83,928.29 × 18,518.79
  4. Step 4: Simplify right side
    55,965.63x = 1,554,250,284.98
  5. Step 5: Solve for x
    x = 1,554,250,284.98/55,965.63
  6. Step 6: Final answer
    x = 27,771.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.