Home / 45,891.81-68,824.44-12,612.96

Finding the Fourth Proportional to 45,891.81, 68,824.44 and 12,612.96

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Solution

The fourth proportional to 45,891.81, 68,824.44 and 12,612.96 is: 18,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,891.81 : 68,824.44 = 12,612.96 : x
  2. Step 2: Convert to fraction form
    45,891.81/68,824.44 = 12,612.96/x
  3. Step 3: Cross multiply
    45,891.81x = 68,824.44 × 12,612.96
  4. Step 4: Simplify right side
    45,891.81x = 868,079,908.74
  5. Step 5: Solve for x
    x = 868,079,908.74/45,891.81
  6. Step 6: Final answer
    x = 18,915.79

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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.