Home / 74,618.73-102,981.11-55,723.05

Finding the Fourth Proportional to 74,618.73, 102,981.11 and 55,723.05

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Solution

The fourth proportional to 74,618.73, 102,981.11 and 55,723.05 is: 76,903.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,618.73 : 102,981.11 = 55,723.05 : x
  2. Step 2: Convert to fraction form
    74,618.73/102,981.11 = 55,723.05/x
  3. Step 3: Cross multiply
    74,618.73x = 102,981.11 × 55,723.05
  4. Step 4: Simplify right side
    74,618.73x = 5,738,421,262.97
  5. Step 5: Solve for x
    x = 5,738,421,262.97/74,618.73
  6. Step 6: Final answer
    x = 76,903.23

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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.