Home / 45,607.76-68,433.30-31,589.36

Finding the Fourth Proportional to 45,607.76, 68,433.30 and 31,589.36

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Solution

The fourth proportional to 45,607.76, 68,433.30 and 31,589.36 is: 47,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,607.76 : 68,433.30 = 31,589.36 : x
  2. Step 2: Convert to fraction form
    45,607.76/68,433.30 = 31,589.36/x
  3. Step 3: Cross multiply
    45,607.76x = 68,433.30 × 31,589.36
  4. Step 4: Simplify right side
    45,607.76x = 2,161,764,149.69
  5. Step 5: Solve for x
    x = 2,161,764,149.69/45,607.76
  6. Step 6: Final answer
    x = 47,399.04

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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.