Home / 56,121.44-84,157.53-21,036.50

Finding the Fourth Proportional to 56,121.44, 84,157.53 and 21,036.50

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Solution

The fourth proportional to 56,121.44, 84,157.53 and 21,036.50 is: 31,545.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.44 : 84,157.53 = 21,036.50 : x
  2. Step 2: Convert to fraction form
    56,121.44/84,157.53 = 21,036.50/x
  3. Step 3: Cross multiply
    56,121.44x = 84,157.53 × 21,036.50
  4. Step 4: Simplify right side
    56,121.44x = 1,770,379,879.85
  5. Step 5: Solve for x
    x = 1,770,379,879.85/56,121.44
  6. Step 6: Final answer
    x = 31,545.52

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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.