Home / 77,981.22-116,972.76-27,381.52

Finding the Fourth Proportional to 77,981.22, 116,972.76 and 27,381.52

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Solution

The fourth proportional to 77,981.22, 116,972.76 and 27,381.52 is: 41,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,981.22 : 116,972.76 = 27,381.52 : x
  2. Step 2: Convert to fraction form
    77,981.22/116,972.76 = 27,381.52/x
  3. Step 3: Cross multiply
    77,981.22x = 116,972.76 × 27,381.52
  4. Step 4: Simplify right side
    77,981.22x = 3,202,891,733.28
  5. Step 5: Solve for x
    x = 3,202,891,733.28/77,981.22
  6. Step 6: Final answer
    x = 41,072.60

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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.