Home / 89,981.48-124,172.19-49,143.92

Finding the Fourth Proportional to 89,981.48, 124,172.19 and 49,143.92

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Solution

The fourth proportional to 89,981.48, 124,172.19 and 49,143.92 is: 67,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.48 : 124,172.19 = 49,143.92 : x
  2. Step 2: Convert to fraction form
    89,981.48/124,172.19 = 49,143.92/x
  3. Step 3: Cross multiply
    89,981.48x = 124,172.19 × 49,143.92
  4. Step 4: Simplify right side
    89,981.48x = 6,102,307,550.72
  5. Step 5: Solve for x
    x = 6,102,307,550.72/89,981.48
  6. Step 6: Final answer
    x = 67,817.37

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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.