Home / 112,979.70-169,470.52-28,739.94

Finding the Fourth Proportional to 112,979.70, 169,470.52 and 28,739.94

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Solution

The fourth proportional to 112,979.70, 169,470.52 and 28,739.94 is: 43,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,979.70 : 169,470.52 = 28,739.94 : x
  2. Step 2: Convert to fraction form
    112,979.70/169,470.52 = 28,739.94/x
  3. Step 3: Cross multiply
    112,979.70x = 169,470.52 × 28,739.94
  4. Step 4: Simplify right side
    112,979.70x = 4,870,571,869.20
  5. Step 5: Solve for x
    x = 4,870,571,869.20/112,979.70
  6. Step 6: Final answer
    x = 43,110.15

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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.