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Finding the Fourth Proportional to 68,960.50, 95,165.58 and 39,152.50

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Solution

The fourth proportional to 68,960.50, 95,165.58 and 39,152.50 is: 54,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,960.50 : 95,165.58 = 39,152.50 : x
  2. Step 2: Convert to fraction form
    68,960.50/95,165.58 = 39,152.50/x
  3. Step 3: Cross multiply
    68,960.50x = 95,165.58 × 39,152.50
  4. Step 4: Simplify right side
    68,960.50x = 3,725,970,370.95
  5. Step 5: Solve for x
    x = 3,725,970,370.95/68,960.50
  6. Step 6: Final answer
    x = 54,030.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.