Home / 45,782.43-68,618.19-19,431.84

Finding the Fourth Proportional to 45,782.43, 68,618.19 and 19,431.84

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Solution

The fourth proportional to 45,782.43, 68,618.19 and 19,431.84 is: 29,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,782.43 : 68,618.19 = 19,431.84 : x
  2. Step 2: Convert to fraction form
    45,782.43/68,618.19 = 19,431.84/x
  3. Step 3: Cross multiply
    45,782.43x = 68,618.19 × 19,431.84
  4. Step 4: Simplify right side
    45,782.43x = 1,333,377,689.17
  5. Step 5: Solve for x
    x = 1,333,377,689.17/45,782.43
  6. Step 6: Final answer
    x = 29,124.22

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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.