Home / 43,079.60-64,620.84-11,912.24

Finding the Fourth Proportional to 43,079.60, 64,620.84 and 11,912.24

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Solution

The fourth proportional to 43,079.60, 64,620.84 and 11,912.24 is: 17,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,079.60 : 64,620.84 = 11,912.24 : x
  2. Step 2: Convert to fraction form
    43,079.60/64,620.84 = 11,912.24/x
  3. Step 3: Cross multiply
    43,079.60x = 64,620.84 × 11,912.24
  4. Step 4: Simplify right side
    43,079.60x = 769,778,955.08
  5. Step 5: Solve for x
    x = 769,778,955.08/43,079.60
  6. Step 6: Final answer
    x = 17,868.76

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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.