Home / 43,176.20-64,745.10-19,809.80

Finding the Fourth Proportional to 43,176.20, 64,745.10 and 19,809.80

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Solution

The fourth proportional to 43,176.20, 64,745.10 and 19,809.80 is: 29,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,176.20 : 64,745.10 = 19,809.80 : x
  2. Step 2: Convert to fraction form
    43,176.20/64,745.10 = 19,809.80/x
  3. Step 3: Cross multiply
    43,176.20x = 64,745.10 × 19,809.80
  4. Step 4: Simplify right side
    43,176.20x = 1,282,587,481.98
  5. Step 5: Solve for x
    x = 1,282,587,481.98/43,176.20
  6. Step 6: Final answer
    x = 29,705.89

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1.5x scale

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.