Home / 74,725.86-112,146.30-55,797.78

Finding the Fourth Proportional to 74,725.86, 112,146.30 and 55,797.78

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Solution

The fourth proportional to 74,725.86, 112,146.30 and 55,797.78 is: 83,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,725.86 : 112,146.30 = 55,797.78 : x
  2. Step 2: Convert to fraction form
    74,725.86/112,146.30 = 55,797.78/x
  3. Step 3: Cross multiply
    74,725.86x = 112,146.30 × 55,797.78
  4. Step 4: Simplify right side
    74,725.86x = 6,257,514,575.21
  5. Step 5: Solve for x
    x = 6,257,514,575.21/74,725.86
  6. Step 6: Final answer
    x = 83,739.61

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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.