Home / 45,357.83-68,013.41-20,376.44

Finding the Fourth Proportional to 45,357.83, 68,013.41 and 20,376.44

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Solution

The fourth proportional to 45,357.83, 68,013.41 and 20,376.44 is: 30,554.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,357.83 : 68,013.41 = 20,376.44 : x
  2. Step 2: Convert to fraction form
    45,357.83/68,013.41 = 20,376.44/x
  3. Step 3: Cross multiply
    45,357.83x = 68,013.41 × 20,376.44
  4. Step 4: Simplify right side
    45,357.83x = 1,385,870,726.11
  5. Step 5: Solve for x
    x = 1,385,870,726.11/45,357.83
  6. Step 6: Final answer
    x = 30,554.17

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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.