Home / 57,489.85-79,338.28-31,997.28

Finding the Fourth Proportional to 57,489.85, 79,338.28 and 31,997.28

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Solution

The fourth proportional to 57,489.85, 79,338.28 and 31,997.28 is: 44,157.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.85 : 79,338.28 = 31,997.28 : x
  2. Step 2: Convert to fraction form
    57,489.85/79,338.28 = 31,997.28/x
  3. Step 3: Cross multiply
    57,489.85x = 79,338.28 × 31,997.28
  4. Step 4: Simplify right side
    57,489.85x = 2,538,609,437.40
  5. Step 5: Solve for x
    x = 2,538,609,437.40/57,489.85
  6. Step 6: Final answer
    x = 44,157.53

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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.