Home / 76,506.15-114,750.10-20,350.37

Finding the Fourth Proportional to 76,506.15, 114,750.10 and 20,350.37

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Solution

The fourth proportional to 76,506.15, 114,750.10 and 20,350.37 is: 30,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,506.15 : 114,750.10 = 20,350.37 : x
  2. Step 2: Convert to fraction form
    76,506.15/114,750.10 = 20,350.37/x
  3. Step 3: Cross multiply
    76,506.15x = 114,750.10 × 20,350.37
  4. Step 4: Simplify right side
    76,506.15x = 2,335,207,304.85
  5. Step 5: Solve for x
    x = 2,335,207,304.85/76,506.15
  6. Step 6: Final answer
    x = 30,523.13

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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.