Home / 87,874.84-121,277.10-50,155.48

Finding the Fourth Proportional to 87,874.84, 121,277.10 and 50,155.48

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Solution

The fourth proportional to 87,874.84, 121,277.10 and 50,155.48 is: 69,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.84 : 121,277.10 = 50,155.48 : x
  2. Step 2: Convert to fraction form
    87,874.84/121,277.10 = 50,155.48/x
  3. Step 3: Cross multiply
    87,874.84x = 121,277.10 × 50,155.48
  4. Step 4: Simplify right side
    87,874.84x = 6,082,711,163.51
  5. Step 5: Solve for x
    x = 6,082,711,163.51/87,874.84
  6. Step 6: Final answer
    x = 69,220.17

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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.