Home / 87,918.84-121,349.72-50,214.96

Finding the Fourth Proportional to 87,918.84, 121,349.72 and 50,214.96

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Solution

The fourth proportional to 87,918.84, 121,349.72 and 50,214.96 is: 69,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918.84 : 121,349.72 = 50,214.96 : x
  2. Step 2: Convert to fraction form
    87,918.84/121,349.72 = 50,214.96/x
  3. Step 3: Cross multiply
    87,918.84x = 121,349.72 × 50,214.96
  4. Step 4: Simplify right side
    87,918.84x = 6,093,571,335.81
  5. Step 5: Solve for x
    x = 6,093,571,335.81/87,918.84
  6. Step 6: Final answer
    x = 69,309.05

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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.