Home / 68,606.55-102,899.39-18,690.57

Finding the Fourth Proportional to 68,606.55, 102,899.39 and 18,690.57

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Solution

The fourth proportional to 68,606.55, 102,899.39 and 18,690.57 is: 28,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,606.55 : 102,899.39 = 18,690.57 : x
  2. Step 2: Convert to fraction form
    68,606.55/102,899.39 = 18,690.57/x
  3. Step 3: Cross multiply
    68,606.55x = 102,899.39 × 18,690.57
  4. Step 4: Simplify right side
    68,606.55x = 1,923,248,158.30
  5. Step 5: Solve for x
    x = 1,923,248,158.30/68,606.55
  6. Step 6: Final answer
    x = 28,033.01

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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.