Home / 76,777.11-115,138.13-29,405.52

Finding the Fourth Proportional to 76,777.11, 115,138.13 and 29,405.52

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Solution

The fourth proportional to 76,777.11, 115,138.13 and 29,405.52 is: 44,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,777.11 : 115,138.13 = 29,405.52 : x
  2. Step 2: Convert to fraction form
    76,777.11/115,138.13 = 29,405.52/x
  3. Step 3: Cross multiply
    76,777.11x = 115,138.13 × 29,405.52
  4. Step 4: Simplify right side
    76,777.11x = 3,385,696,437.45
  5. Step 5: Solve for x
    x = 3,385,696,437.45/76,777.11
  6. Step 6: Final answer
    x = 44,097.73

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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.