Home / 89,809.80-123,945.81-51,574.35

Finding the Fourth Proportional to 89,809.80, 123,945.81 and 51,574.35

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Solution

The fourth proportional to 89,809.80, 123,945.81 and 51,574.35 is: 71,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,809.80 : 123,945.81 = 51,574.35 : x
  2. Step 2: Convert to fraction form
    89,809.80/123,945.81 = 51,574.35/x
  3. Step 3: Cross multiply
    89,809.80x = 123,945.81 × 51,574.35
  4. Step 4: Simplify right side
    89,809.80x = 6,392,424,585.97
  5. Step 5: Solve for x
    x = 6,392,424,585.97/89,809.80
  6. Step 6: Final answer
    x = 71,177.36

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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.