Home / 79,785.28-110,080.80-51,507.04

Finding the Fourth Proportional to 79,785.28, 110,080.80 and 51,507.04

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Solution

The fourth proportional to 79,785.28, 110,080.80 and 51,507.04 is: 71,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,785.28 : 110,080.80 = 51,507.04 : x
  2. Step 2: Convert to fraction form
    79,785.28/110,080.80 = 51,507.04/x
  3. Step 3: Cross multiply
    79,785.28x = 110,080.80 × 51,507.04
  4. Step 4: Simplify right side
    79,785.28x = 5,669,936,168.83
  5. Step 5: Solve for x
    x = 5,669,936,168.83/79,785.28
  6. Step 6: Final answer
    x = 71,064.94

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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.