Home / 79,213.05-109,273.16-53,710.80

Finding the Fourth Proportional to 79,213.05, 109,273.16 and 53,710.80

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Solution

The fourth proportional to 79,213.05, 109,273.16 and 53,710.80 is: 74,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,213.05 : 109,273.16 = 53,710.80 : x
  2. Step 2: Convert to fraction form
    79,213.05/109,273.16 = 53,710.80/x
  3. Step 3: Cross multiply
    79,213.05x = 109,273.16 × 53,710.80
  4. Step 4: Simplify right side
    79,213.05x = 5,869,148,573.57
  5. Step 5: Solve for x
    x = 5,869,148,573.57/79,213.05
  6. Step 6: Final answer
    x = 74,093.20

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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.