Home / 87,584.50-120,869.49-47,840.50

Finding the Fourth Proportional to 87,584.50, 120,869.49 and 47,840.50

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Solution

The fourth proportional to 87,584.50, 120,869.49 and 47,840.50 is: 66,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,584.50 : 120,869.49 = 47,840.50 : x
  2. Step 2: Convert to fraction form
    87,584.50/120,869.49 = 47,840.50/x
  3. Step 3: Cross multiply
    87,584.50x = 120,869.49 × 47,840.50
  4. Step 4: Simplify right side
    87,584.50x = 5,782,456,836.35
  5. Step 5: Solve for x
    x = 5,782,456,836.35/87,584.50
  6. Step 6: Final answer
    x = 66,021.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.