Home / 79,117.25-109,181.97-43,309.55

Finding the Fourth Proportional to 79,117.25, 109,181.97 and 43,309.55

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Solution

The fourth proportional to 79,117.25, 109,181.97 and 43,309.55 is: 59,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.25 : 109,181.97 = 43,309.55 : x
  2. Step 2: Convert to fraction form
    79,117.25/109,181.97 = 43,309.55/x
  3. Step 3: Cross multiply
    79,117.25x = 109,181.97 × 43,309.55
  4. Step 4: Simplify right side
    79,117.25x = 4,728,622,261.77
  5. Step 5: Solve for x
    x = 4,728,622,261.77/79,117.25
  6. Step 6: Final answer
    x = 59,767.28

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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.