Home / 90,658.29-135,940.51-40,695.37

Finding the Fourth Proportional to 90,658.29, 135,940.51 and 40,695.37

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Solution

The fourth proportional to 90,658.29, 135,940.51 and 40,695.37 is: 61,021.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658.29 : 135,940.51 = 40,695.37 : x
  2. Step 2: Convert to fraction form
    90,658.29/135,940.51 = 40,695.37/x
  3. Step 3: Cross multiply
    90,658.29x = 135,940.51 × 40,695.37
  4. Step 4: Simplify right side
    90,658.29x = 5,532,149,352.44
  5. Step 5: Solve for x
    x = 5,532,149,352.44/90,658.29
  6. Step 6: Final answer
    x = 61,021.99

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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.