Home / 72,797.20-109,213.92-57,860.66

Finding the Fourth Proportional to 72,797.20, 109,213.92 and 57,860.66

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Solution

The fourth proportional to 72,797.20, 109,213.92 and 57,860.66 is: 86,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,797.20 : 109,213.92 = 57,860.66 : x
  2. Step 2: Convert to fraction form
    72,797.20/109,213.92 = 57,860.66/x
  3. Step 3: Cross multiply
    72,797.20x = 109,213.92 × 57,860.66
  4. Step 4: Simplify right side
    72,797.20x = 6,319,189,492.39
  5. Step 5: Solve for x
    x = 6,319,189,492.39/72,797.20
  6. Step 6: Final answer
    x = 86,805.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.