Home / 87,898.20-121,299.46-47,611.86

Finding the Fourth Proportional to 87,898.20, 121,299.46 and 47,611.86

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Solution

The fourth proportional to 87,898.20, 121,299.46 and 47,611.86 is: 65,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,898.20 : 121,299.46 = 47,611.86 : x
  2. Step 2: Convert to fraction form
    87,898.20/121,299.46 = 47,611.86/x
  3. Step 3: Cross multiply
    87,898.20x = 121,299.46 × 47,611.86
  4. Step 4: Simplify right side
    87,898.20x = 5,775,292,907.60
  5. Step 5: Solve for x
    x = 5,775,292,907.60/87,898.20
  6. Step 6: Final answer
    x = 65,704.34

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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.