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Finding the Fourth Proportional to 68,506.95, 102,502.03 and 40,442.28

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Solution

The fourth proportional to 68,506.95, 102,502.03 and 40,442.28 is: 60,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,506.95 : 102,502.03 = 40,442.28 : x
  2. Step 2: Convert to fraction form
    68,506.95/102,502.03 = 40,442.28/x
  3. Step 3: Cross multiply
    68,506.95x = 102,502.03 × 40,442.28
  4. Step 4: Simplify right side
    68,506.95x = 4,145,415,797.83
  5. Step 5: Solve for x
    x = 4,145,415,797.83/68,506.95
  6. Step 6: Final answer
    x = 60,510.88

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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.