Home / 87,531.50-131,086.73-49,977.74

Finding the Fourth Proportional to 87,531.50, 131,086.73 and 49,977.74

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Solution

The fourth proportional to 87,531.50, 131,086.73 and 49,977.74 is: 74,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,531.50 : 131,086.73 = 49,977.74 : x
  2. Step 2: Convert to fraction form
    87,531.50/131,086.73 = 49,977.74/x
  3. Step 3: Cross multiply
    87,531.50x = 131,086.73 × 49,977.74
  4. Step 4: Simplify right side
    87,531.50x = 6,551,417,604.07
  5. Step 5: Solve for x
    x = 6,551,417,604.07/87,531.50
  6. Step 6: Final answer
    x = 74,846.40

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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.