Home / 84,392.19-126,562.77-28,217.88

Finding the Fourth Proportional to 84,392.19, 126,562.77 and 28,217.88

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Solution

The fourth proportional to 84,392.19, 126,562.77 and 28,217.88 is: 42,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,392.19 : 126,562.77 = 28,217.88 : x
  2. Step 2: Convert to fraction form
    84,392.19/126,562.77 = 28,217.88/x
  3. Step 3: Cross multiply
    84,392.19x = 126,562.77 × 28,217.88
  4. Step 4: Simplify right side
    84,392.19x = 3,571,333,056.33
  5. Step 5: Solve for x
    x = 3,571,333,056.33/84,392.19
  6. Step 6: Final answer
    x = 42,318.29

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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.