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Finding the Fourth Proportional to 68,287.94, 102,385.20 and 30,827.58

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Solution

The fourth proportional to 68,287.94, 102,385.20 and 30,827.58 is: 46,220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,287.94 : 102,385.20 = 30,827.58 : x
  2. Step 2: Convert to fraction form
    68,287.94/102,385.20 = 30,827.58/x
  3. Step 3: Cross multiply
    68,287.94x = 102,385.20 × 30,827.58
  4. Step 4: Simplify right side
    68,287.94x = 3,156,287,943.82
  5. Step 5: Solve for x
    x = 3,156,287,943.82/68,287.94
  6. Step 6: Final answer
    x = 46,220.28

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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.