Home / 45,490.70-68,215.32-19,181.06

Finding the Fourth Proportional to 45,490.70, 68,215.32 and 19,181.06

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Solution

The fourth proportional to 45,490.70, 68,215.32 and 19,181.06 is: 28,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,490.70 : 68,215.32 = 19,181.06 : x
  2. Step 2: Convert to fraction form
    45,490.70/68,215.32 = 19,181.06/x
  3. Step 3: Cross multiply
    45,490.70x = 68,215.32 × 19,181.06
  4. Step 4: Simplify right side
    45,490.70x = 1,308,442,145.84
  5. Step 5: Solve for x
    x = 1,308,442,145.84/45,490.70
  6. Step 6: Final answer
    x = 28,762.85

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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.