Home / 89,972.66-124,161.54-49,689.14

Finding the Fourth Proportional to 89,972.66, 124,161.54 and 49,689.14

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Solution

The fourth proportional to 89,972.66, 124,161.54 and 49,689.14 is: 68,570.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,972.66 : 124,161.54 = 49,689.14 : x
  2. Step 2: Convert to fraction form
    89,972.66/124,161.54 = 49,689.14/x
  3. Step 3: Cross multiply
    89,972.66x = 124,161.54 × 49,689.14
  4. Step 4: Simplify right side
    89,972.66x = 6,169,480,143.68
  5. Step 5: Solve for x
    x = 6,169,480,143.68/89,972.66
  6. Step 6: Final answer
    x = 68,570.61

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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.