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Finding the Fourth Proportional to 68,505.84, 102,765.12 and 26,943.12

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Solution

The fourth proportional to 68,505.84, 102,765.12 and 26,943.12 is: 40,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,505.84 : 102,765.12 = 26,943.12 : x
  2. Step 2: Convert to fraction form
    68,505.84/102,765.12 = 26,943.12/x
  3. Step 3: Cross multiply
    68,505.84x = 102,765.12 × 26,943.12
  4. Step 4: Simplify right side
    68,505.84x = 2,768,812,959.97
  5. Step 5: Solve for x
    x = 2,768,812,959.97/68,505.84
  6. Step 6: Final answer
    x = 40,417.18

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1.5x scale

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.