Home / 76,767.45-115,063.82-46,715.40

Finding the Fourth Proportional to 76,767.45, 115,063.82 and 46,715.40

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Solution

The fourth proportional to 76,767.45, 115,063.82 and 46,715.40 is: 70,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,767.45 : 115,063.82 = 46,715.40 : x
  2. Step 2: Convert to fraction form
    76,767.45/115,063.82 = 46,715.40/x
  3. Step 3: Cross multiply
    76,767.45x = 115,063.82 × 46,715.40
  4. Step 4: Simplify right side
    76,767.45x = 5,375,252,749.92
  5. Step 5: Solve for x
    x = 5,375,252,749.92/76,767.45
  6. Step 6: Final answer
    x = 70,019.95

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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.