Home / 79,179.81-109,268.19-43,370.42

Finding the Fourth Proportional to 79,179.81, 109,268.19 and 43,370.42

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Solution

The fourth proportional to 79,179.81, 109,268.19 and 43,370.42 is: 59,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,179.81 : 109,268.19 = 43,370.42 : x
  2. Step 2: Convert to fraction form
    79,179.81/109,268.19 = 43,370.42/x
  3. Step 3: Cross multiply
    79,179.81x = 109,268.19 × 43,370.42
  4. Step 4: Simplify right side
    79,179.81x = 4,739,007,076.09
  5. Step 5: Solve for x
    x = 4,739,007,076.09/79,179.81
  6. Step 6: Final answer
    x = 59,851.21

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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.