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Finding the Fourth Proportional to 67,320.93, 100,981.08 and 17,396.78

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Solution

The fourth proportional to 67,320.93, 100,981.08 and 17,396.78 is: 26,095.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,320.93 : 100,981.08 = 17,396.78 : x
  2. Step 2: Convert to fraction form
    67,320.93/100,981.08 = 17,396.78/x
  3. Step 3: Cross multiply
    67,320.93x = 100,981.08 × 17,396.78
  4. Step 4: Simplify right side
    67,320.93x = 1,756,745,632.92
  5. Step 5: Solve for x
    x = 1,756,745,632.92/67,320.93
  6. Step 6: Final answer
    x = 26,095.09

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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.