Home / 79,720.20-110,021.64-59,542.05

Finding the Fourth Proportional to 79,720.20, 110,021.64 and 59,542.05

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Solution

The fourth proportional to 79,720.20, 110,021.64 and 59,542.05 is: 82,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,720.20 : 110,021.64 = 59,542.05 : x
  2. Step 2: Convert to fraction form
    79,720.20/110,021.64 = 59,542.05/x
  3. Step 3: Cross multiply
    79,720.20x = 110,021.64 × 59,542.05
  4. Step 4: Simplify right side
    79,720.20x = 6,550,913,989.96
  5. Step 5: Solve for x
    x = 6,550,913,989.96/79,720.20
  6. Step 6: Final answer
    x = 82,173.83

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1.5x scale

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.