Home / 67,009.09-100,528.22-20,260.75

Finding the Fourth Proportional to 67,009.09, 100,528.22 and 20,260.75

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Solution

The fourth proportional to 67,009.09, 100,528.22 and 20,260.75 is: 30,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,009.09 : 100,528.22 = 20,260.75 : x
  2. Step 2: Convert to fraction form
    67,009.09/100,528.22 = 20,260.75/x
  3. Step 3: Cross multiply
    67,009.09x = 100,528.22 × 20,260.75
  4. Step 4: Simplify right side
    67,009.09x = 2,036,777,133.37
  5. Step 5: Solve for x
    x = 2,036,777,133.37/67,009.09
  6. Step 6: Final answer
    x = 30,395.53

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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.