Home / 79,380.80-109,546.64-43,570.16

Finding the Fourth Proportional to 79,380.80, 109,546.64 and 43,570.16

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Solution

The fourth proportional to 79,380.80, 109,546.64 and 43,570.16 is: 60,127.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,380.80 : 109,546.64 = 43,570.16 : x
  2. Step 2: Convert to fraction form
    79,380.80/109,546.64 = 43,570.16/x
  3. Step 3: Cross multiply
    79,380.80x = 109,546.64 × 43,570.16
  4. Step 4: Simplify right side
    79,380.80x = 4,772,964,632.26
  5. Step 5: Solve for x
    x = 4,772,964,632.26/79,380.80
  6. Step 6: Final answer
    x = 60,127.44

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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.