Home / 87,773.84-121,142.39-53,801.22

Finding the Fourth Proportional to 87,773.84, 121,142.39 and 53,801.22

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Solution

The fourth proportional to 87,773.84, 121,142.39 and 53,801.22 is: 74,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,773.84 : 121,142.39 = 53,801.22 : x
  2. Step 2: Convert to fraction form
    87,773.84/121,142.39 = 53,801.22/x
  3. Step 3: Cross multiply
    87,773.84x = 121,142.39 × 53,801.22
  4. Step 4: Simplify right side
    87,773.84x = 6,517,608,375.72
  5. Step 5: Solve for x
    x = 6,517,608,375.72/87,773.84
  6. Step 6: Final answer
    x = 74,254.57

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1.5x scale

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.