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Finding the Fourth Proportional to 68,100.60, 102,114.45 and 28,613.10

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Solution

The fourth proportional to 68,100.60, 102,114.45 and 28,613.10 is: 42,904.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,100.60 : 102,114.45 = 28,613.10 : x
  2. Step 2: Convert to fraction form
    68,100.60/102,114.45 = 28,613.10/x
  3. Step 3: Cross multiply
    68,100.60x = 102,114.45 × 28,613.10
  4. Step 4: Simplify right side
    68,100.60x = 2,921,810,969.30
  5. Step 5: Solve for x
    x = 2,921,810,969.30/68,100.60
  6. Step 6: Final answer
    x = 42,904.34

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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.