Home / 56,297.45-84,458.21-20,758.86

Finding the Fourth Proportional to 56,297.45, 84,458.21 and 20,758.86

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Solution

The fourth proportional to 56,297.45, 84,458.21 and 20,758.86 is: 31,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,297.45 : 84,458.21 = 20,758.86 : x
  2. Step 2: Convert to fraction form
    56,297.45/84,458.21 = 20,758.86/x
  3. Step 3: Cross multiply
    56,297.45x = 84,458.21 × 20,758.86
  4. Step 4: Simplify right side
    56,297.45x = 1,753,256,053.45
  5. Step 5: Solve for x
    x = 1,753,256,053.45/56,297.45
  6. Step 6: Final answer
    x = 31,142.73

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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.