Home / 57,235.92-85,857.72-19,799.61

Finding the Fourth Proportional to 57,235.92, 85,857.72 and 19,799.61

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Solution

The fourth proportional to 57,235.92, 85,857.72 and 19,799.61 is: 29,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,235.92 : 85,857.72 = 19,799.61 : x
  2. Step 2: Convert to fraction form
    57,235.92/85,857.72 = 19,799.61/x
  3. Step 3: Cross multiply
    57,235.92x = 85,857.72 × 19,799.61
  4. Step 4: Simplify right side
    57,235.92x = 1,699,949,371.49
  5. Step 5: Solve for x
    x = 1,699,949,371.49/57,235.92
  6. Step 6: Final answer
    x = 29,700.74

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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.