Home / 87,983.60-121,424.28-50,270

Finding the Fourth Proportional to 87,983.60, 121,424.28 and 50,270

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Solution

The fourth proportional to 87,983.60, 121,424.28 and 50,270 is: 69,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,983.60 : 121,424.28 = 50,270 : x
  2. Step 2: Convert to fraction form
    87,983.60/121,424.28 = 50,270/x
  3. Step 3: Cross multiply
    87,983.60x = 121,424.28 × 50,270
  4. Step 4: Simplify right side
    87,983.60x = 6,103,998,555.60
  5. Step 5: Solve for x
    x = 6,103,998,555.60/87,983.60
  6. Step 6: Final answer
    x = 69,376.55

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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.