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Finding the Fourth Proportional to 67,201.60, 100,656.60 and 55,537.60

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Solution

The fourth proportional to 67,201.60, 100,656.60 and 55,537.60 is: 83,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,201.60 : 100,656.60 = 55,537.60 : x
  2. Step 2: Convert to fraction form
    67,201.60/100,656.60 = 55,537.60/x
  3. Step 3: Cross multiply
    67,201.60x = 100,656.60 × 55,537.60
  4. Step 4: Simplify right side
    67,201.60x = 5,590,225,988.16
  5. Step 5: Solve for x
    x = 5,590,225,988.16/67,201.60
  6. Step 6: Final answer
    x = 83,185.91

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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.