Home / 57,649.28-79,556.04-31,153.28

Finding the Fourth Proportional to 57,649.28, 79,556.04 and 31,153.28

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Solution

The fourth proportional to 57,649.28, 79,556.04 and 31,153.28 is: 42,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,649.28 : 79,556.04 = 31,153.28 : x
  2. Step 2: Convert to fraction form
    57,649.28/79,556.04 = 31,153.28/x
  3. Step 3: Cross multiply
    57,649.28x = 79,556.04 × 31,153.28
  4. Step 4: Simplify right side
    57,649.28x = 2,478,431,589.81
  5. Step 5: Solve for x
    x = 2,478,431,589.81/57,649.28
  6. Step 6: Final answer
    x = 42,991.54

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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.