Home / 56,083.10-84,121.34-21,019.82

Finding the Fourth Proportional to 56,083.10, 84,121.34 and 21,019.82

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Solution

The fourth proportional to 56,083.10, 84,121.34 and 21,019.82 is: 31,528.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,083.10 : 84,121.34 = 21,019.82 : x
  2. Step 2: Convert to fraction form
    56,083.10/84,121.34 = 21,019.82/x
  3. Step 3: Cross multiply
    56,083.10x = 84,121.34 × 21,019.82
  4. Step 4: Simplify right side
    56,083.10x = 1,768,214,899.25
  5. Step 5: Solve for x
    x = 1,768,214,899.25/56,083.10
  6. Step 6: Final answer
    x = 31,528.48

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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.