Home / 54,849.05-75,696.32-30,980.07

Finding the Fourth Proportional to 54,849.05, 75,696.32 and 30,980.07

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Solution

The fourth proportional to 54,849.05, 75,696.32 and 30,980.07 is: 42,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,849.05 : 75,696.32 = 30,980.07 : x
  2. Step 2: Convert to fraction form
    54,849.05/75,696.32 = 30,980.07/x
  3. Step 3: Cross multiply
    54,849.05x = 75,696.32 × 30,980.07
  4. Step 4: Simplify right side
    54,849.05x = 2,345,077,369.79
  5. Step 5: Solve for x
    x = 2,345,077,369.79/54,849.05
  6. Step 6: Final answer
    x = 42,755.11

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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.