Home / 80,108.88-120,222.44-37,989.10

Finding the Fourth Proportional to 80,108.88, 120,222.44 and 37,989.10

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Solution

The fourth proportional to 80,108.88, 120,222.44 and 37,989.10 is: 57,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,108.88 : 120,222.44 = 37,989.10 : x
  2. Step 2: Convert to fraction form
    80,108.88/120,222.44 = 37,989.10/x
  3. Step 3: Cross multiply
    80,108.88x = 120,222.44 × 37,989.10
  4. Step 4: Simplify right side
    80,108.88x = 4,567,142,295.40
  5. Step 5: Solve for x
    x = 4,567,142,295.40/80,108.88
  6. Step 6: Final answer
    x = 57,011.69

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1.5x scale

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.