Home / 90,486.10-124,869.72-50,198.86

Finding the Fourth Proportional to 90,486.10, 124,869.72 and 50,198.86

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Solution

The fourth proportional to 90,486.10, 124,869.72 and 50,198.86 is: 69,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,486.10 : 124,869.72 = 50,198.86 : x
  2. Step 2: Convert to fraction form
    90,486.10/124,869.72 = 50,198.86/x
  3. Step 3: Cross multiply
    90,486.10x = 124,869.72 × 50,198.86
  4. Step 4: Simplify right side
    90,486.10x = 6,268,317,592.52
  5. Step 5: Solve for x
    x = 6,268,317,592.52/90,486.10
  6. Step 6: Final answer
    x = 69,273.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.