Home / 89,981.91-124,172.66-49,694.81

Finding the Fourth Proportional to 89,981.91, 124,172.66 and 49,694.81

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Solution

The fourth proportional to 89,981.91, 124,172.66 and 49,694.81 is: 68,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.91 : 124,172.66 = 49,694.81 : x
  2. Step 2: Convert to fraction form
    89,981.91/124,172.66 = 49,694.81/x
  3. Step 3: Cross multiply
    89,981.91x = 124,172.66 × 49,694.81
  4. Step 4: Simplify right side
    89,981.91x = 6,170,736,745.89
  5. Step 5: Solve for x
    x = 6,170,736,745.89/89,981.91
  6. Step 6: Final answer
    x = 68,577.53

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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.