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Finding the Fourth Proportional to 68,964, 103,452 and 19,044.16

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Solution

The fourth proportional to 68,964, 103,452 and 19,044.16 is: 28,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,964 : 103,452 = 19,044.16 : x
  2. Step 2: Convert to fraction form
    68,964/103,452 = 19,044.16/x
  3. Step 3: Cross multiply
    68,964x = 103,452 × 19,044.16
  4. Step 4: Simplify right side
    68,964x = 1,970,156,440.32
  5. Step 5: Solve for x
    x = 1,970,156,440.32/68,964
  6. Step 6: Final answer
    x = 28,567.90

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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.