Home / 40,185.87-60,288.80-12,105.29

Finding the Fourth Proportional to 40,185.87, 60,288.80 and 12,105.29

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Solution

The fourth proportional to 40,185.87, 60,288.80 and 12,105.29 is: 18,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,185.87 : 60,288.80 = 12,105.29 : x
  2. Step 2: Convert to fraction form
    40,185.87/60,288.80 = 12,105.29/x
  3. Step 3: Cross multiply
    40,185.87x = 60,288.80 × 12,105.29
  4. Step 4: Simplify right side
    40,185.87x = 729,813,045.78
  5. Step 5: Solve for x
    x = 729,813,045.78/40,185.87
  6. Step 6: Final answer
    x = 18,160.94

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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.