Home / 76,934.40-115,207.20-48,768.72

Finding the Fourth Proportional to 76,934.40, 115,207.20 and 48,768.72

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Solution

The fourth proportional to 76,934.40, 115,207.20 and 48,768.72 is: 73,029.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,934.40 : 115,207.20 = 48,768.72 : x
  2. Step 2: Convert to fraction form
    76,934.40/115,207.20 = 48,768.72/x
  3. Step 3: Cross multiply
    76,934.40x = 115,207.20 × 48,768.72
  4. Step 4: Simplify right side
    76,934.40x = 5,618,507,678.78
  5. Step 5: Solve for x
    x = 5,618,507,678.78/76,934.40
  6. Step 6: Final answer
    x = 73,029.85

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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.