Home / 57,101.32-85,660.26-19,670.68

Finding the Fourth Proportional to 57,101.32, 85,660.26 and 19,670.68

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Solution

The fourth proportional to 57,101.32, 85,660.26 and 19,670.68 is: 29,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,101.32 : 85,660.26 = 19,670.68 : x
  2. Step 2: Convert to fraction form
    57,101.32/85,660.26 = 19,670.68/x
  3. Step 3: Cross multiply
    57,101.32x = 85,660.26 × 19,670.68
  4. Step 4: Simplify right side
    57,101.32x = 1,684,995,563.18
  5. Step 5: Solve for x
    x = 1,684,995,563.18/57,101.32
  6. Step 6: Final answer
    x = 29,508.87

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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.