Home / 84,228.35-126,305.69-31,600.94

Finding the Fourth Proportional to 84,228.35, 126,305.69 and 31,600.94

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Solution

The fourth proportional to 84,228.35, 126,305.69 and 31,600.94 is: 47,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,228.35 : 126,305.69 = 31,600.94 : x
  2. Step 2: Convert to fraction form
    84,228.35/126,305.69 = 31,600.94/x
  3. Step 3: Cross multiply
    84,228.35x = 126,305.69 × 31,600.94
  4. Step 4: Simplify right side
    84,228.35x = 3,991,377,741.82
  5. Step 5: Solve for x
    x = 3,991,377,741.82/84,228.35
  6. Step 6: Final answer
    x = 47,387.58

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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.