Home / 87,893.84-121,315.20-50,189.96

Finding the Fourth Proportional to 87,893.84, 121,315.20 and 50,189.96

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Solution

The fourth proportional to 87,893.84, 121,315.20 and 50,189.96 is: 69,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,893.84 : 121,315.20 = 50,189.96 : x
  2. Step 2: Convert to fraction form
    87,893.84/121,315.20 = 50,189.96/x
  3. Step 3: Cross multiply
    87,893.84x = 121,315.20 × 50,189.96
  4. Step 4: Simplify right side
    87,893.84x = 6,088,805,035.39
  5. Step 5: Solve for x
    x = 6,088,805,035.39/87,893.84
  6. Step 6: Final answer
    x = 69,274.54

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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.