Home / 84,025.82-126,060.60-31,439.45

Finding the Fourth Proportional to 84,025.82, 126,060.60 and 31,439.45

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Solution

The fourth proportional to 84,025.82, 126,060.60 and 31,439.45 is: 47,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,025.82 : 126,060.60 = 31,439.45 : x
  2. Step 2: Convert to fraction form
    84,025.82/126,060.60 = 31,439.45/x
  3. Step 3: Cross multiply
    84,025.82x = 126,060.60 × 31,439.45
  4. Step 4: Simplify right side
    84,025.82x = 3,963,275,930.67
  5. Step 5: Solve for x
    x = 3,963,275,930.67/84,025.82
  6. Step 6: Final answer
    x = 47,167.36

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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.