Home / 56,121.03-84,185.25-18,679.59

Finding the Fourth Proportional to 56,121.03, 84,185.25 and 18,679.59

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Solution

The fourth proportional to 56,121.03, 84,185.25 and 18,679.59 is: 28,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.03 : 84,185.25 = 18,679.59 : x
  2. Step 2: Convert to fraction form
    56,121.03/84,185.25 = 18,679.59/x
  3. Step 3: Cross multiply
    56,121.03x = 84,185.25 × 18,679.59
  4. Step 4: Simplify right side
    56,121.03x = 1,572,545,954.05
  5. Step 5: Solve for x
    x = 1,572,545,954.05/56,121.03
  6. Step 6: Final answer
    x = 28,020.62

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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.