Home / 43,257.28-64,688.24-31,450.72

Finding the Fourth Proportional to 43,257.28, 64,688.24 and 31,450.72

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Solution

The fourth proportional to 43,257.28, 64,688.24 and 31,450.72 is: 47,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,257.28 : 64,688.24 = 31,450.72 : x
  2. Step 2: Convert to fraction form
    43,257.28/64,688.24 = 31,450.72/x
  3. Step 3: Cross multiply
    43,257.28x = 64,688.24 × 31,450.72
  4. Step 4: Simplify right side
    43,257.28x = 2,034,491,723.53
  5. Step 5: Solve for x
    x = 2,034,491,723.53/43,257.28
  6. Step 6: Final answer
    x = 47,032.35

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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.