Home / 51,639.92-77,449.85-14,190.38

Finding the Fourth Proportional to 51,639.92, 77,449.85 and 14,190.38

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Solution

The fourth proportional to 51,639.92, 77,449.85 and 14,190.38 is: 21,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.92 : 77,449.85 = 14,190.38 : x
  2. Step 2: Convert to fraction form
    51,639.92/77,449.85 = 14,190.38/x
  3. Step 3: Cross multiply
    51,639.92x = 77,449.85 × 14,190.38
  4. Step 4: Simplify right side
    51,639.92x = 1,099,042,802.44
  5. Step 5: Solve for x
    x = 1,099,042,802.44/51,639.92
  6. Step 6: Final answer
    x = 21,282.81

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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.