Home / 76,945.80-115,440.30-37,504.20

Finding the Fourth Proportional to 76,945.80, 115,440.30 and 37,504.20

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Solution

The fourth proportional to 76,945.80, 115,440.30 and 37,504.20 is: 56,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,945.80 : 115,440.30 = 37,504.20 : x
  2. Step 2: Convert to fraction form
    76,945.80/115,440.30 = 37,504.20/x
  3. Step 3: Cross multiply
    76,945.80x = 115,440.30 × 37,504.20
  4. Step 4: Simplify right side
    76,945.80x = 4,329,496,099.26
  5. Step 5: Solve for x
    x = 4,329,496,099.26/76,945.80
  6. Step 6: Final answer
    x = 56,266.83

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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.