Home / 76,689.72-114,981.21-33,971.95

Finding the Fourth Proportional to 76,689.72, 114,981.21 and 33,971.95

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Solution

The fourth proportional to 76,689.72, 114,981.21 and 33,971.95 is: 50,934.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,689.72 : 114,981.21 = 33,971.95 : x
  2. Step 2: Convert to fraction form
    76,689.72/114,981.21 = 33,971.95/x
  3. Step 3: Cross multiply
    76,689.72x = 114,981.21 × 33,971.95
  4. Step 4: Simplify right side
    76,689.72x = 3,906,135,917.06
  5. Step 5: Solve for x
    x = 3,906,135,917.06/76,689.72
  6. Step 6: Final answer
    x = 50,934.28

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1.5x scale

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.