Home / 57,167.32-85,729.92-19,717.80

Finding the Fourth Proportional to 57,167.32, 85,729.92 and 19,717.80

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Solution

The fourth proportional to 57,167.32, 85,729.92 and 19,717.80 is: 29,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,167.32 : 85,729.92 = 19,717.80 : x
  2. Step 2: Convert to fraction form
    57,167.32/85,729.92 = 19,717.80/x
  3. Step 3: Cross multiply
    57,167.32x = 85,729.92 × 19,717.80
  4. Step 4: Simplify right side
    57,167.32x = 1,690,405,416.58
  5. Step 5: Solve for x
    x = 1,690,405,416.58/57,167.32
  6. Step 6: Final answer
    x = 29,569.44

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1.5x scale

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.