Home / 84,287.37-126,449.54-31,696.86

Finding the Fourth Proportional to 84,287.37, 126,449.54 and 31,696.86

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Solution

The fourth proportional to 84,287.37, 126,449.54 and 31,696.86 is: 47,552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,287.37 : 126,449.54 = 31,696.86 : x
  2. Step 2: Convert to fraction form
    84,287.37/126,449.54 = 31,696.86/x
  3. Step 3: Cross multiply
    84,287.37x = 126,449.54 × 31,696.86
  4. Step 4: Simplify right side
    84,287.37x = 4,008,053,366.44
  5. Step 5: Solve for x
    x = 4,008,053,366.44/84,287.37
  6. Step 6: Final answer
    x = 47,552.24

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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.