Home / 57,274.38-85,913.20-15,721.38

Finding the Fourth Proportional to 57,274.38, 85,913.20 and 15,721.38

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Solution

The fourth proportional to 57,274.38, 85,913.20 and 15,721.38 is: 23,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,274.38 : 85,913.20 = 15,721.38 : x
  2. Step 2: Convert to fraction form
    57,274.38/85,913.20 = 15,721.38/x
  3. Step 3: Cross multiply
    57,274.38x = 85,913.20 × 15,721.38
  4. Step 4: Simplify right side
    57,274.38x = 1,350,674,064.22
  5. Step 5: Solve for x
    x = 1,350,674,064.22/57,274.38
  6. Step 6: Final answer
    x = 23,582.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.