Home / 87,868.80-131,738.40-59,718.60

Finding the Fourth Proportional to 87,868.80, 131,738.40 and 59,718.60

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Solution

The fourth proportional to 87,868.80, 131,738.40 and 59,718.60 is: 89,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.80 : 131,738.40 = 59,718.60 : x
  2. Step 2: Convert to fraction form
    87,868.80/131,738.40 = 59,718.60/x
  3. Step 3: Cross multiply
    87,868.80x = 131,738.40 × 59,718.60
  4. Step 4: Simplify right side
    87,868.80x = 7,867,232,814.24
  5. Step 5: Solve for x
    x = 7,867,232,814.24/87,868.80
  6. Step 6: Final answer
    x = 89,533.86

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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.