Home / 84,286.37-126,448.04-31,695.86

Finding the Fourth Proportional to 84,286.37, 126,448.04 and 31,695.86

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Solution

The fourth proportional to 84,286.37, 126,448.04 and 31,695.86 is: 47,550.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,286.37 : 126,448.04 = 31,695.86 : x
  2. Step 2: Convert to fraction form
    84,286.37/126,448.04 = 31,695.86/x
  3. Step 3: Cross multiply
    84,286.37x = 126,448.04 × 31,695.86
  4. Step 4: Simplify right side
    84,286.37x = 4,007,879,768.47
  5. Step 5: Solve for x
    x = 4,007,879,768.47/84,286.37
  6. Step 6: Final answer
    x = 47,550.74

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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.