Home / 87,081.40-130,544.34-34,454.89

Finding the Fourth Proportional to 87,081.40, 130,544.34 and 34,454.89

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Solution

The fourth proportional to 87,081.40, 130,544.34 and 34,454.89 is: 51,651.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,081.40 : 130,544.34 = 34,454.89 : x
  2. Step 2: Convert to fraction form
    87,081.40/130,544.34 = 34,454.89/x
  3. Step 3: Cross multiply
    87,081.40x = 130,544.34 × 34,454.89
  4. Step 4: Simplify right side
    87,081.40x = 4,497,890,874.82
  5. Step 5: Solve for x
    x = 4,497,890,874.82/87,081.40
  6. Step 6: Final answer
    x = 51,651.57

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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.