Home / 68,348.84-102,528.62-18,428.18

Finding the Fourth Proportional to 68,348.84, 102,528.62 and 18,428.18

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Solution

The fourth proportional to 68,348.84, 102,528.62 and 18,428.18 is: 27,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,348.84 : 102,528.62 = 18,428.18 : x
  2. Step 2: Convert to fraction form
    68,348.84/102,528.62 = 18,428.18/x
  3. Step 3: Cross multiply
    68,348.84x = 102,528.62 × 18,428.18
  4. Step 4: Simplify right side
    68,348.84x = 1,889,415,259.73
  5. Step 5: Solve for x
    x = 1,889,415,259.73/68,348.84
  6. Step 6: Final answer
    x = 27,643.71

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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.