Home / 84,383.94-126,550.38-28,209.63

Finding the Fourth Proportional to 84,383.94, 126,550.38 and 28,209.63

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Solution

The fourth proportional to 84,383.94, 126,550.38 and 28,209.63 is: 42,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,383.94 : 126,550.38 = 28,209.63 : x
  2. Step 2: Convert to fraction form
    84,383.94/126,550.38 = 28,209.63/x
  3. Step 3: Cross multiply
    84,383.94x = 126,550.38 × 28,209.63
  4. Step 4: Simplify right side
    84,383.94x = 3,569,939,396.16
  5. Step 5: Solve for x
    x = 3,569,939,396.16/84,383.94
  6. Step 6: Final answer
    x = 42,305.91

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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.