Home / 45,780.43-68,615.19-19,429.83

Finding the Fourth Proportional to 45,780.43, 68,615.19 and 19,429.83

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Solution

The fourth proportional to 45,780.43, 68,615.19 and 19,429.83 is: 29,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,780.43 : 68,615.19 = 19,429.83 : x
  2. Step 2: Convert to fraction form
    45,780.43/68,615.19 = 19,429.83/x
  3. Step 3: Cross multiply
    45,780.43x = 68,615.19 × 19,429.83
  4. Step 4: Simplify right side
    45,780.43x = 1,333,181,477.12
  5. Step 5: Solve for x
    x = 1,333,181,477.12/45,780.43
  6. Step 6: Final answer
    x = 29,121.21

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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.