Home / 45,731.20-68,742.60-43,106.80

Finding the Fourth Proportional to 45,731.20, 68,742.60 and 43,106.80

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Solution

The fourth proportional to 45,731.20, 68,742.60 and 43,106.80 is: 64,797.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,731.20 : 68,742.60 = 43,106.80 : x
  2. Step 2: Convert to fraction form
    45,731.20/68,742.60 = 43,106.80/x
  3. Step 3: Cross multiply
    45,731.20x = 68,742.60 × 43,106.80
  4. Step 4: Simplify right side
    45,731.20x = 2,963,273,509.68
  5. Step 5: Solve for x
    x = 2,963,273,509.68/45,731.20
  6. Step 6: Final answer
    x = 64,797.63

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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.