Home / 43,909.50-65,864.25-12,745.56

Finding the Fourth Proportional to 43,909.50, 65,864.25 and 12,745.56

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Solution

The fourth proportional to 43,909.50, 65,864.25 and 12,745.56 is: 19,118.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,909.50 : 65,864.25 = 12,745.56 : x
  2. Step 2: Convert to fraction form
    43,909.50/65,864.25 = 12,745.56/x
  3. Step 3: Cross multiply
    43,909.50x = 65,864.25 × 12,745.56
  4. Step 4: Simplify right side
    43,909.50x = 839,476,750.23
  5. Step 5: Solve for x
    x = 839,476,750.23/43,909.50
  6. Step 6: Final answer
    x = 19,118.34

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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.