Home / 43,315.56-64,977.48-12,150.72

Finding the Fourth Proportional to 43,315.56, 64,977.48 and 12,150.72

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Solution

The fourth proportional to 43,315.56, 64,977.48 and 12,150.72 is: 18,227.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315.56 : 64,977.48 = 12,150.72 : x
  2. Step 2: Convert to fraction form
    43,315.56/64,977.48 = 12,150.72/x
  3. Step 3: Cross multiply
    43,315.56x = 64,977.48 × 12,150.72
  4. Step 4: Simplify right side
    43,315.56x = 789,523,165.79
  5. Step 5: Solve for x
    x = 789,523,165.79/43,315.56
  6. Step 6: Final answer
    x = 18,227.24

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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.