Home / 84,520.32-126,844.76-31,262.69

Finding the Fourth Proportional to 84,520.32, 126,844.76 and 31,262.69

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Solution

The fourth proportional to 84,520.32, 126,844.76 and 31,262.69 is: 46,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,520.32 : 126,844.76 = 31,262.69 : x
  2. Step 2: Convert to fraction form
    84,520.32/126,844.76 = 31,262.69/x
  3. Step 3: Cross multiply
    84,520.32x = 126,844.76 × 31,262.69
  4. Step 4: Simplify right side
    84,520.32x = 3,965,507,619.47
  5. Step 5: Solve for x
    x = 3,965,507,619.47/84,520.32
  6. Step 6: Final answer
    x = 46,917.80

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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.