Home / 84,292.11-126,443.04-31,702.05

Finding the Fourth Proportional to 84,292.11, 126,443.04 and 31,702.05

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Solution

The fourth proportional to 84,292.11, 126,443.04 and 31,702.05 is: 47,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,292.11 : 126,443.04 = 31,702.05 : x
  2. Step 2: Convert to fraction form
    84,292.11/126,443.04 = 31,702.05/x
  3. Step 3: Cross multiply
    84,292.11x = 126,443.04 × 31,702.05
  4. Step 4: Simplify right side
    84,292.11x = 4,008,503,576.23
  5. Step 5: Solve for x
    x = 4,008,503,576.23/84,292.11
  6. Step 6: Final answer
    x = 47,554.91

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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.