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Finding the Fourth Proportional to 66,908.27, 100,362.45 and 16,992.11

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Solution

The fourth proportional to 66,908.27, 100,362.45 and 16,992.11 is: 25,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,908.27 : 100,362.45 = 16,992.11 : x
  2. Step 2: Convert to fraction form
    66,908.27/100,362.45 = 16,992.11/x
  3. Step 3: Cross multiply
    66,908.27x = 100,362.45 × 16,992.11
  4. Step 4: Simplify right side
    66,908.27x = 1,705,369,288.46
  5. Step 5: Solve for x
    x = 1,705,369,288.46/66,908.27
  6. Step 6: Final answer
    x = 25,488.17

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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.