Home / 45,929.82-68,886.84-12,642.48

Finding the Fourth Proportional to 45,929.82, 68,886.84 and 12,642.48

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Solution

The fourth proportional to 45,929.82, 68,886.84 and 12,642.48 is: 18,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,929.82 : 68,886.84 = 12,642.48 : x
  2. Step 2: Convert to fraction form
    45,929.82/68,886.84 = 12,642.48/x
  3. Step 3: Cross multiply
    45,929.82x = 68,886.84 × 12,642.48
  4. Step 4: Simplify right side
    45,929.82x = 870,900,496.96
  5. Step 5: Solve for x
    x = 870,900,496.96/45,929.82
  6. Step 6: Final answer
    x = 18,961.55

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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.