Home / 56,155.20-84,193.79-21,085.44

Finding the Fourth Proportional to 56,155.20, 84,193.79 and 21,085.44

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Solution

The fourth proportional to 56,155.20, 84,193.79 and 21,085.44 is: 31,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,155.20 : 84,193.79 = 21,085.44 : x
  2. Step 2: Convert to fraction form
    56,155.20/84,193.79 = 21,085.44/x
  3. Step 3: Cross multiply
    56,155.20x = 84,193.79 × 21,085.44
  4. Step 4: Simplify right side
    56,155.20x = 1,775,263,001.99
  5. Step 5: Solve for x
    x = 1,775,263,001.99/56,155.20
  6. Step 6: Final answer
    x = 31,613.51

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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.