Home / 68,185.10-102,242.63-36,621.72

Finding the Fourth Proportional to 68,185.10, 102,242.63 and 36,621.72

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Solution

The fourth proportional to 68,185.10, 102,242.63 and 36,621.72 is: 54,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,185.10 : 102,242.63 = 36,621.72 : x
  2. Step 2: Convert to fraction form
    68,185.10/102,242.63 = 36,621.72/x
  3. Step 3: Cross multiply
    68,185.10x = 102,242.63 × 36,621.72
  4. Step 4: Simplify right side
    68,185.10x = 3,744,300,273.60
  5. Step 5: Solve for x
    x = 3,744,300,273.60/68,185.10
  6. Step 6: Final answer
    x = 54,913.76

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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.