Home / 81,131.66-121,709.04-24,976.46

Finding the Fourth Proportional to 81,131.66, 121,709.04 and 24,976.46

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Solution

The fourth proportional to 81,131.66, 121,709.04 and 24,976.46 is: 37,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,131.66 : 121,709.04 = 24,976.46 : x
  2. Step 2: Convert to fraction form
    81,131.66/121,709.04 = 24,976.46/x
  3. Step 3: Cross multiply
    81,131.66x = 121,709.04 × 24,976.46
  4. Step 4: Simplify right side
    81,131.66x = 3,039,860,969.20
  5. Step 5: Solve for x
    x = 3,039,860,969.20/81,131.66
  6. Step 6: Final answer
    x = 37,468.25

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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.