Home / 55,481.12-76,563.28-31,609.24

Finding the Fourth Proportional to 55,481.12, 76,563.28 and 31,609.24

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Solution

The fourth proportional to 55,481.12, 76,563.28 and 31,609.24 is: 43,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,481.12 : 76,563.28 = 31,609.24 : x
  2. Step 2: Convert to fraction form
    55,481.12/76,563.28 = 31,609.24/x
  3. Step 3: Cross multiply
    55,481.12x = 76,563.28 × 31,609.24
  4. Step 4: Simplify right side
    55,481.12x = 2,420,107,092.71
  5. Step 5: Solve for x
    x = 2,420,107,092.71/55,481.12
  6. Step 6: Final answer
    x = 43,620.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.