Home / 87,083.85-130,609.23-30,921.69

Finding the Fourth Proportional to 87,083.85, 130,609.23 and 30,921.69

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Solution

The fourth proportional to 87,083.85, 130,609.23 and 30,921.69 is: 46,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,083.85 : 130,609.23 = 30,921.69 : x
  2. Step 2: Convert to fraction form
    87,083.85/130,609.23 = 30,921.69/x
  3. Step 3: Cross multiply
    87,083.85x = 130,609.23 × 30,921.69
  4. Step 4: Simplify right side
    87,083.85x = 4,038,658,121.20
  5. Step 5: Solve for x
    x = 4,038,658,121.20/87,083.85
  6. Step 6: Final answer
    x = 46,376.66

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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.