Home / 43,706.85-65,553.02-12,120.16

Finding the Fourth Proportional to 43,706.85, 65,553.02 and 12,120.16

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Solution

The fourth proportional to 43,706.85, 65,553.02 and 12,120.16 is: 18,178.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,706.85 : 65,553.02 = 12,120.16 : x
  2. Step 2: Convert to fraction form
    43,706.85/65,553.02 = 12,120.16/x
  3. Step 3: Cross multiply
    43,706.85x = 65,553.02 × 12,120.16
  4. Step 4: Simplify right side
    43,706.85x = 794,513,090.88
  5. Step 5: Solve for x
    x = 794,513,090.88/43,706.85
  6. Step 6: Final answer
    x = 18,178.23

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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.