Home / 87,217.10-130,826.16-31,059.40

Finding the Fourth Proportional to 87,217.10, 130,826.16 and 31,059.40

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Solution

The fourth proportional to 87,217.10, 130,826.16 and 31,059.40 is: 46,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,217.10 : 130,826.16 = 31,059.40 : x
  2. Step 2: Convert to fraction form
    87,217.10/130,826.16 = 31,059.40/x
  3. Step 3: Cross multiply
    87,217.10x = 130,826.16 × 31,059.40
  4. Step 4: Simplify right side
    87,217.10x = 4,063,382,033.90
  5. Step 5: Solve for x
    x = 4,063,382,033.90/87,217.10
  6. Step 6: Final answer
    x = 46,589.28

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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.