Home / 53,912.18-74,399.51-30,945.71

Finding the Fourth Proportional to 53,912.18, 74,399.51 and 30,945.71

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Solution

The fourth proportional to 53,912.18, 74,399.51 and 30,945.71 is: 42,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912.18 : 74,399.51 = 30,945.71 : x
  2. Step 2: Convert to fraction form
    53,912.18/74,399.51 = 30,945.71/x
  3. Step 3: Cross multiply
    53,912.18x = 74,399.51 × 30,945.71
  4. Step 4: Simplify right side
    53,912.18x = 2,302,345,923.97
  5. Step 5: Solve for x
    x = 2,302,345,923.97/53,912.18
  6. Step 6: Final answer
    x = 42,705.49

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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.