Home / 76,815.64-115,233.18-37,339.48

Finding the Fourth Proportional to 76,815.64, 115,233.18 and 37,339.48

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Solution

The fourth proportional to 76,815.64, 115,233.18 and 37,339.48 is: 56,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,815.64 : 115,233.18 = 37,339.48 : x
  2. Step 2: Convert to fraction form
    76,815.64/115,233.18 = 37,339.48/x
  3. Step 3: Cross multiply
    76,815.64x = 115,233.18 × 37,339.48
  4. Step 4: Simplify right side
    76,815.64x = 4,302,747,019.95
  5. Step 5: Solve for x
    x = 4,302,747,019.95/76,815.64
  6. Step 6: Final answer
    x = 56,013.94

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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.