Home / 68,519.24-102,785.72-18,600.16

Finding the Fourth Proportional to 68,519.24, 102,785.72 and 18,600.16

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Solution

The fourth proportional to 68,519.24, 102,785.72 and 18,600.16 is: 27,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,519.24 : 102,785.72 = 18,600.16 : x
  2. Step 2: Convert to fraction form
    68,519.24/102,785.72 = 18,600.16/x
  3. Step 3: Cross multiply
    68,519.24x = 102,785.72 × 18,600.16
  4. Step 4: Simplify right side
    68,519.24x = 1,911,830,837.72
  5. Step 5: Solve for x
    x = 1,911,830,837.72/68,519.24
  6. Step 6: Final answer
    x = 27,902.10

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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.