Home / 55,021.13-82,531.70-15,578.45

Finding the Fourth Proportional to 55,021.13, 82,531.70 and 15,578.45

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Solution

The fourth proportional to 55,021.13, 82,531.70 and 15,578.45 is: 23,367.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,021.13 : 82,531.70 = 15,578.45 : x
  2. Step 2: Convert to fraction form
    55,021.13/82,531.70 = 15,578.45/x
  3. Step 3: Cross multiply
    55,021.13x = 82,531.70 × 15,578.45
  4. Step 4: Simplify right side
    55,021.13x = 1,285,715,961.87
  5. Step 5: Solve for x
    x = 1,285,715,961.87/55,021.13
  6. Step 6: Final answer
    x = 23,367.68

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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.