Home / 60,405.20-90,559.52-20,942

Finding the Fourth Proportional to 60,405.20, 90,559.52 and 20,942

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Solution

The fourth proportional to 60,405.20, 90,559.52 and 20,942 is: 31,396.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,405.20 : 90,559.52 = 20,942 : x
  2. Step 2: Convert to fraction form
    60,405.20/90,559.52 = 20,942/x
  3. Step 3: Cross multiply
    60,405.20x = 90,559.52 × 20,942
  4. Step 4: Simplify right side
    60,405.20x = 1,896,497,467.84
  5. Step 5: Solve for x
    x = 1,896,497,467.84/60,405.20
  6. Step 6: Final answer
    x = 31,396.26

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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.