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Finding the Fourth Proportional to 55,111.60, 82,667.40 and 28,824.40

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Solution

The fourth proportional to 55,111.60, 82,667.40 and 28,824.40 is: 43,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.60 : 82,667.40 = 28,824.40 : x
  2. Step 2: Convert to fraction form
    55,111.60/82,667.40 = 28,824.40/x
  3. Step 3: Cross multiply
    55,111.60x = 82,667.40 × 28,824.40
  4. Step 4: Simplify right side
    55,111.60x = 2,382,838,204.56
  5. Step 5: Solve for x
    x = 2,382,838,204.56/55,111.60
  6. Step 6: Final answer
    x = 43,236.60

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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.