Home / 77,418.73-106,812.57-45,146.04

Finding the Fourth Proportional to 77,418.73, 106,812.57 and 45,146.04

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Solution

The fourth proportional to 77,418.73, 106,812.57 and 45,146.04 is: 62,286.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,418.73 : 106,812.57 = 45,146.04 : x
  2. Step 2: Convert to fraction form
    77,418.73/106,812.57 = 45,146.04/x
  3. Step 3: Cross multiply
    77,418.73x = 106,812.57 × 45,146.04
  4. Step 4: Simplify right side
    77,418.73x = 4,822,164,023.66
  5. Step 5: Solve for x
    x = 4,822,164,023.66/77,418.73
  6. Step 6: Final answer
    x = 62,286.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.