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Finding the Fourth Proportional to 68,264.76, 102,414.40 and 19,016.76

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Solution

The fourth proportional to 68,264.76, 102,414.40 and 19,016.76 is: 28,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,264.76 : 102,414.40 = 19,016.76 : x
  2. Step 2: Convert to fraction form
    68,264.76/102,414.40 = 19,016.76/x
  3. Step 3: Cross multiply
    68,264.76x = 102,414.40 × 19,016.76
  4. Step 4: Simplify right side
    68,264.76x = 1,947,590,065.34
  5. Step 5: Solve for x
    x = 1,947,590,065.34/68,264.76
  6. Step 6: Final answer
    x = 28,529.95

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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.