Home / 43,315.42-64,974.09-12,149.98

Finding the Fourth Proportional to 43,315.42, 64,974.09 and 12,149.98

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Solution

The fourth proportional to 43,315.42, 64,974.09 and 12,149.98 is: 18,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315.42 : 64,974.09 = 12,149.98 : x
  2. Step 2: Convert to fraction form
    43,315.42/64,974.09 = 12,149.98/x
  3. Step 3: Cross multiply
    43,315.42x = 64,974.09 × 12,149.98
  4. Step 4: Simplify right side
    43,315.42x = 789,433,894.02
  5. Step 5: Solve for x
    x = 789,433,894.02/43,315.42
  6. Step 6: Final answer
    x = 18,225.24

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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.