Home / 87,863.40-131,702.04-28,683.18

Finding the Fourth Proportional to 87,863.40, 131,702.04 and 28,683.18

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Solution

The fourth proportional to 87,863.40, 131,702.04 and 28,683.18 is: 42,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.40 : 131,702.04 = 28,683.18 : x
  2. Step 2: Convert to fraction form
    87,863.40/131,702.04 = 28,683.18/x
  3. Step 3: Cross multiply
    87,863.40x = 131,702.04 × 28,683.18
  4. Step 4: Simplify right side
    87,863.40x = 3,777,633,319.69
  5. Step 5: Solve for x
    x = 3,777,633,319.69/87,863.40
  6. Step 6: Final answer
    x = 42,994.39

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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.