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Finding the Fourth Proportional to 68,335.20, 102,502.80 and 41,954.40

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Solution

The fourth proportional to 68,335.20, 102,502.80 and 41,954.40 is: 62,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,335.20 : 102,502.80 = 41,954.40 : x
  2. Step 2: Convert to fraction form
    68,335.20/102,502.80 = 41,954.40/x
  3. Step 3: Cross multiply
    68,335.20x = 102,502.80 × 41,954.40
  4. Step 4: Simplify right side
    68,335.20x = 4,300,443,472.32
  5. Step 5: Solve for x
    x = 4,300,443,472.32/68,335.20
  6. Step 6: Final answer
    x = 62,931.60

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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.