Home / 79,085.32-109,133.04-43,268.20

Finding the Fourth Proportional to 79,085.32, 109,133.04 and 43,268.20

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Solution

The fourth proportional to 79,085.32, 109,133.04 and 43,268.20 is: 59,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,085.32 : 109,133.04 = 43,268.20 : x
  2. Step 2: Convert to fraction form
    79,085.32/109,133.04 = 43,268.20/x
  3. Step 3: Cross multiply
    79,085.32x = 109,133.04 × 43,268.20
  4. Step 4: Simplify right side
    79,085.32x = 4,721,990,201.33
  5. Step 5: Solve for x
    x = 4,721,990,201.33/79,085.32
  6. Step 6: Final answer
    x = 59,707.54

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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.