Home / 43,441.80-65,112.30-20,070.60

Finding the Fourth Proportional to 43,441.80, 65,112.30 and 20,070.60

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Solution

The fourth proportional to 43,441.80, 65,112.30 and 20,070.60 is: 30,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,441.80 : 65,112.30 = 20,070.60 : x
  2. Step 2: Convert to fraction form
    43,441.80/65,112.30 = 20,070.60/x
  3. Step 3: Cross multiply
    43,441.80x = 65,112.30 × 20,070.60
  4. Step 4: Simplify right side
    43,441.80x = 1,306,842,928.38
  5. Step 5: Solve for x
    x = 1,306,842,928.38/43,441.80
  6. Step 6: Final answer
    x = 30,082.61

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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.