Home / 87,732.81-121,072.01-50,009.49

Finding the Fourth Proportional to 87,732.81, 121,072.01 and 50,009.49

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Solution

The fourth proportional to 87,732.81, 121,072.01 and 50,009.49 is: 69,013.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,732.81 : 121,072.01 = 50,009.49 : x
  2. Step 2: Convert to fraction form
    87,732.81/121,072.01 = 50,009.49/x
  3. Step 3: Cross multiply
    87,732.81x = 121,072.01 × 50,009.49
  4. Step 4: Simplify right side
    87,732.81x = 6,054,749,223.33
  5. Step 5: Solve for x
    x = 6,054,749,223.33/87,732.81
  6. Step 6: Final answer
    x = 69,013.51

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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.