Home / 89,981.66-124,172.32-49,694.56

Finding the Fourth Proportional to 89,981.66, 124,172.32 and 49,694.56

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Solution

The fourth proportional to 89,981.66, 124,172.32 and 49,694.56 is: 68,577.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.66 : 124,172.32 = 49,694.56 : x
  2. Step 2: Convert to fraction form
    89,981.66/124,172.32 = 49,694.56/x
  3. Step 3: Cross multiply
    89,981.66x = 124,172.32 × 49,694.56
  4. Step 4: Simplify right side
    89,981.66x = 6,170,688,371.91
  5. Step 5: Solve for x
    x = 6,170,688,371.91/89,981.66
  6. Step 6: Final answer
    x = 68,577.18

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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.