Home / 57,274.37-79,039.05-31,780.83

Finding the Fourth Proportional to 57,274.37, 79,039.05 and 31,780.83

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Solution

The fourth proportional to 57,274.37, 79,039.05 and 31,780.83 is: 43,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,274.37 : 79,039.05 = 31,780.83 : x
  2. Step 2: Convert to fraction form
    57,274.37/79,039.05 = 31,780.83/x
  3. Step 3: Cross multiply
    57,274.37x = 79,039.05 × 31,780.83
  4. Step 4: Simplify right side
    57,274.37x = 2,511,926,452.51
  5. Step 5: Solve for x
    x = 2,511,926,452.51/57,274.37
  6. Step 6: Final answer
    x = 43,857.78

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1.5x scale

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.