Home / 79,083.68-109,131.32-45,093.20

Finding the Fourth Proportional to 79,083.68, 109,131.32 and 45,093.20

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Solution

The fourth proportional to 79,083.68, 109,131.32 and 45,093.20 is: 62,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,083.68 : 109,131.32 = 45,093.20 : x
  2. Step 2: Convert to fraction form
    79,083.68/109,131.32 = 45,093.20/x
  3. Step 3: Cross multiply
    79,083.68x = 109,131.32 × 45,093.20
  4. Step 4: Simplify right side
    79,083.68x = 4,921,080,439.02
  5. Step 5: Solve for x
    x = 4,921,080,439.02/79,083.68
  6. Step 6: Final answer
    x = 62,226.24

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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.