Home / 57,818.20-86,646.30-45,992.20

Finding the Fourth Proportional to 57,818.20, 86,646.30 and 45,992.20

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Solution

The fourth proportional to 57,818.20, 86,646.30 and 45,992.20 is: 68,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,818.20 : 86,646.30 = 45,992.20 : x
  2. Step 2: Convert to fraction form
    57,818.20/86,646.30 = 45,992.20/x
  3. Step 3: Cross multiply
    57,818.20x = 86,646.30 × 45,992.20
  4. Step 4: Simplify right side
    57,818.20x = 3,985,053,958.86
  5. Step 5: Solve for x
    x = 3,985,053,958.86/57,818.20
  6. Step 6: Final answer
    x = 68,923.87

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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.