Home / 76,904.90-115,233.15-43,525.70

Finding the Fourth Proportional to 76,904.90, 115,233.15 and 43,525.70

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Solution

The fourth proportional to 76,904.90, 115,233.15 and 43,525.70 is: 65,218.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,904.90 : 115,233.15 = 43,525.70 : x
  2. Step 2: Convert to fraction form
    76,904.90/115,233.15 = 43,525.70/x
  3. Step 3: Cross multiply
    76,904.90x = 115,233.15 × 43,525.70
  4. Step 4: Simplify right side
    76,904.90x = 5,015,603,516.96
  5. Step 5: Solve for x
    x = 5,015,603,516.96/76,904.90
  6. Step 6: Final answer
    x = 65,218.26

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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.