Home / 79,142.97-109,226.05-45,159.83

Finding the Fourth Proportional to 79,142.97, 109,226.05 and 45,159.83

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Solution

The fourth proportional to 79,142.97, 109,226.05 and 45,159.83 is: 62,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,142.97 : 109,226.05 = 45,159.83 : x
  2. Step 2: Convert to fraction form
    79,142.97/109,226.05 = 45,159.83/x
  3. Step 3: Cross multiply
    79,142.97x = 109,226.05 × 45,159.83
  4. Step 4: Simplify right side
    79,142.97x = 4,932,629,303.44
  5. Step 5: Solve for x
    x = 4,932,629,303.44/79,142.97
  6. Step 6: Final answer
    x = 62,325.55

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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.