Home / 43,402.89-65,106.56-12,240.57

Finding the Fourth Proportional to 43,402.89, 65,106.56 and 12,240.57

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Solution

The fourth proportional to 43,402.89, 65,106.56 and 12,240.57 is: 18,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,402.89 : 65,106.56 = 12,240.57 : x
  2. Step 2: Convert to fraction form
    43,402.89/65,106.56 = 12,240.57/x
  3. Step 3: Cross multiply
    43,402.89x = 65,106.56 × 12,240.57
  4. Step 4: Simplify right side
    43,402.89x = 796,941,435.74
  5. Step 5: Solve for x
    x = 796,941,435.74/43,402.89
  6. Step 6: Final answer
    x = 18,361.48

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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.