Home / 79,181.12-109,085.44-55,265.60

Finding the Fourth Proportional to 79,181.12, 109,085.44 and 55,265.60

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Solution

The fourth proportional to 79,181.12, 109,085.44 and 55,265.60 is: 76,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,181.12 : 109,085.44 = 55,265.60 : x
  2. Step 2: Convert to fraction form
    79,181.12/109,085.44 = 55,265.60/x
  3. Step 3: Cross multiply
    79,181.12x = 109,085.44 × 55,265.60
  4. Step 4: Simplify right side
    79,181.12x = 6,028,672,292.86
  5. Step 5: Solve for x
    x = 6,028,672,292.86/79,181.12
  6. Step 6: Final answer
    x = 76,137.75

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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.