Home / 79,520.22-109,731.30-45,520.86

Finding the Fourth Proportional to 79,520.22, 109,731.30 and 45,520.86

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Solution

The fourth proportional to 79,520.22, 109,731.30 and 45,520.86 is: 62,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,520.22 : 109,731.30 = 45,520.86 : x
  2. Step 2: Convert to fraction form
    79,520.22/109,731.30 = 45,520.86/x
  3. Step 3: Cross multiply
    79,520.22x = 109,731.30 × 45,520.86
  4. Step 4: Simplify right side
    79,520.22x = 4,995,063,144.92
  5. Step 5: Solve for x
    x = 4,995,063,144.92/79,520.22
  6. Step 6: Final answer
    x = 62,815.01

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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.