Home / 76,731.80-115,104.45-23,435.81

Finding the Fourth Proportional to 76,731.80, 115,104.45 and 23,435.81

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Solution

The fourth proportional to 76,731.80, 115,104.45 and 23,435.81 is: 35,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,731.80 : 115,104.45 = 23,435.81 : x
  2. Step 2: Convert to fraction form
    76,731.80/115,104.45 = 23,435.81/x
  3. Step 3: Cross multiply
    76,731.80x = 115,104.45 × 23,435.81
  4. Step 4: Simplify right side
    76,731.80x = 2,697,566,020.35
  5. Step 5: Solve for x
    x = 2,697,566,020.35/76,731.80
  6. Step 6: Final answer
    x = 35,155.78

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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.