Home / 57,278.08-79,044.18-31,784.54

Finding the Fourth Proportional to 57,278.08, 79,044.18 and 31,784.54

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Solution

The fourth proportional to 57,278.08, 79,044.18 and 31,784.54 is: 43,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,278.08 : 79,044.18 = 31,784.54 : x
  2. Step 2: Convert to fraction form
    57,278.08/79,044.18 = 31,784.54/x
  3. Step 3: Cross multiply
    57,278.08x = 79,044.18 × 31,784.54
  4. Step 4: Simplify right side
    57,278.08x = 2,512,382,900.98
  5. Step 5: Solve for x
    x = 2,512,382,900.98/57,278.08
  6. Step 6: Final answer
    x = 43,862.90

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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.