Home / 89,981.06-124,172.87-49,694.03

Finding the Fourth Proportional to 89,981.06, 124,172.87 and 49,694.03

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Solution

The fourth proportional to 89,981.06, 124,172.87 and 49,694.03 is: 68,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.06 : 124,172.87 = 49,694.03 : x
  2. Step 2: Convert to fraction form
    89,981.06/124,172.87 = 49,694.03/x
  3. Step 3: Cross multiply
    89,981.06x = 124,172.87 × 49,694.03
  4. Step 4: Simplify right side
    89,981.06x = 6,170,649,457.63
  5. Step 5: Solve for x
    x = 6,170,649,457.63/89,981.06
  6. Step 6: Final answer
    x = 68,577.21

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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.