Home / 90,521.41-135,738.22-53,093.71

Finding the Fourth Proportional to 90,521.41, 135,738.22 and 53,093.71

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Solution

The fourth proportional to 90,521.41, 135,738.22 and 53,093.71 is: 79,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,521.41 : 135,738.22 = 53,093.71 : x
  2. Step 2: Convert to fraction form
    90,521.41/135,738.22 = 53,093.71/x
  3. Step 3: Cross multiply
    90,521.41x = 135,738.22 × 53,093.71
  4. Step 4: Simplify right side
    90,521.41x = 7,206,845,688.60
  5. Step 5: Solve for x
    x = 7,206,845,688.60/90,521.41
  6. Step 6: Final answer
    x = 79,614.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.