Home / 43,074.63-64,615.46-11,909.88

Finding the Fourth Proportional to 43,074.63, 64,615.46 and 11,909.88

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Solution

The fourth proportional to 43,074.63, 64,615.46 and 11,909.88 is: 17,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,074.63 : 64,615.46 = 11,909.88 : x
  2. Step 2: Convert to fraction form
    43,074.63/64,615.46 = 11,909.88/x
  3. Step 3: Cross multiply
    43,074.63x = 64,615.46 × 11,909.88
  4. Step 4: Simplify right side
    43,074.63x = 769,562,315.20
  5. Step 5: Solve for x
    x = 769,562,315.20/43,074.63
  6. Step 6: Final answer
    x = 17,865.79

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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.