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Finding the Fourth Proportional to 55,137.60, 82,706.40 and 28,850.40

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Solution

The fourth proportional to 55,137.60, 82,706.40 and 28,850.40 is: 43,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,137.60 : 82,706.40 = 28,850.40 : x
  2. Step 2: Convert to fraction form
    55,137.60/82,706.40 = 28,850.40/x
  3. Step 3: Cross multiply
    55,137.60x = 82,706.40 × 28,850.40
  4. Step 4: Simplify right side
    55,137.60x = 2,386,112,722.56
  5. Step 5: Solve for x
    x = 2,386,112,722.56/55,137.60
  6. Step 6: Final answer
    x = 43,275.60

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Why These Related Problems?

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