Home / 87,813.10-131,725.31-30,880.02

Finding the Fourth Proportional to 87,813.10, 131,725.31 and 30,880.02

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Solution

The fourth proportional to 87,813.10, 131,725.31 and 30,880.02 is: 46,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,813.10 : 131,725.31 = 30,880.02 : x
  2. Step 2: Convert to fraction form
    87,813.10/131,725.31 = 30,880.02/x
  3. Step 3: Cross multiply
    87,813.10x = 131,725.31 × 30,880.02
  4. Step 4: Simplify right side
    87,813.10x = 4,067,680,207.31
  5. Step 5: Solve for x
    x = 4,067,680,207.31/87,813.10
  6. Step 6: Final answer
    x = 46,322.02

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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.