Home / 79,516.20-109,732.96-43,706.80

Finding the Fourth Proportional to 79,516.20, 109,732.96 and 43,706.80

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Solution

The fourth proportional to 79,516.20, 109,732.96 and 43,706.80 is: 60,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,516.20 : 109,732.96 = 43,706.80 : x
  2. Step 2: Convert to fraction form
    79,516.20/109,732.96 = 43,706.80/x
  3. Step 3: Cross multiply
    79,516.20x = 109,732.96 × 43,706.80
  4. Step 4: Simplify right side
    79,516.20x = 4,796,076,536.13
  5. Step 5: Solve for x
    x = 4,796,076,536.13/79,516.20
  6. Step 6: Final answer
    x = 60,315.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.