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Finding the Fourth Proportional to 68,956.56, 95,160 and 39,148.56

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Solution

The fourth proportional to 68,956.56, 95,160 and 39,148.56 is: 54,024.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,956.56 : 95,160 = 39,148.56 : x
  2. Step 2: Convert to fraction form
    68,956.56/95,160 = 39,148.56/x
  3. Step 3: Cross multiply
    68,956.56x = 95,160 × 39,148.56
  4. Step 4: Simplify right side
    68,956.56x = 3,725,376,969.60
  5. Step 5: Solve for x
    x = 3,725,376,969.60/68,956.56
  6. Step 6: Final answer
    x = 54,024.98

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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.