Home / 43,179.06-64,770.91-13,599.21

Finding the Fourth Proportional to 43,179.06, 64,770.91 and 13,599.21

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Solution

The fourth proportional to 43,179.06, 64,770.91 and 13,599.21 is: 20,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,179.06 : 64,770.91 = 13,599.21 : x
  2. Step 2: Convert to fraction form
    43,179.06/64,770.91 = 13,599.21/x
  3. Step 3: Cross multiply
    43,179.06x = 64,770.91 × 13,599.21
  4. Step 4: Simplify right side
    43,179.06x = 880,833,051.54
  5. Step 5: Solve for x
    x = 880,833,051.54/43,179.06
  6. Step 6: Final answer
    x = 20,399.54

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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.