Home / 57,310.94-85,934.93-19,867.68

Finding the Fourth Proportional to 57,310.94, 85,934.93 and 19,867.68

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Solution

The fourth proportional to 57,310.94, 85,934.93 and 19,867.68 is: 29,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,310.94 : 85,934.93 = 19,867.68 : x
  2. Step 2: Convert to fraction form
    57,310.94/85,934.93 = 19,867.68/x
  3. Step 3: Cross multiply
    57,310.94x = 85,934.93 × 19,867.68
  4. Step 4: Simplify right side
    57,310.94x = 1,707,327,590.72
  5. Step 5: Solve for x
    x = 1,707,327,590.72/57,310.94
  6. Step 6: Final answer
    x = 29,790.60

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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.