Home / 90,465.24-135,781.92-46,125.30

Finding the Fourth Proportional to 90,465.24, 135,781.92 and 46,125.30

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Solution

The fourth proportional to 90,465.24, 135,781.92 and 46,125.30 is: 69,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,465.24 : 135,781.92 = 46,125.30 : x
  2. Step 2: Convert to fraction form
    90,465.24/135,781.92 = 46,125.30/x
  3. Step 3: Cross multiply
    90,465.24x = 135,781.92 × 46,125.30
  4. Step 4: Simplify right side
    90,465.24x = 6,262,981,794.58
  5. Step 5: Solve for x
    x = 6,262,981,794.58/90,465.24
  6. Step 6: Final answer
    x = 69,230.81

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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.