Home / 40,521.56-60,782.34-10,939.38

Finding the Fourth Proportional to 40,521.56, 60,782.34 and 10,939.38

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Solution

The fourth proportional to 40,521.56, 60,782.34 and 10,939.38 is: 16,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,521.56 : 60,782.34 = 10,939.38 : x
  2. Step 2: Convert to fraction form
    40,521.56/60,782.34 = 10,939.38/x
  3. Step 3: Cross multiply
    40,521.56x = 60,782.34 × 10,939.38
  4. Step 4: Simplify right side
    40,521.56x = 664,921,114.55
  5. Step 5: Solve for x
    x = 664,921,114.55/40,521.56
  6. Step 6: Final answer
    x = 16,409.07

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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.