Home / 68,530.32-102,794.40-21,782.52

Finding the Fourth Proportional to 68,530.32, 102,794.40 and 21,782.52

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Solution

The fourth proportional to 68,530.32, 102,794.40 and 21,782.52 is: 32,673.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,530.32 : 102,794.40 = 21,782.52 : x
  2. Step 2: Convert to fraction form
    68,530.32/102,794.40 = 21,782.52/x
  3. Step 3: Cross multiply
    68,530.32x = 102,794.40 × 21,782.52
  4. Step 4: Simplify right side
    68,530.32x = 2,239,121,073.89
  5. Step 5: Solve for x
    x = 2,239,121,073.89/68,530.32
  6. Step 6: Final answer
    x = 32,673.44

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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.