Home / 50,071.28-75,134.57-20,509.83

Finding the Fourth Proportional to 50,071.28, 75,134.57 and 20,509.83

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Solution

The fourth proportional to 50,071.28, 75,134.57 and 20,509.83 is: 30,776.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,071.28 : 75,134.57 = 20,509.83 : x
  2. Step 2: Convert to fraction form
    50,071.28/75,134.57 = 20,509.83/x
  3. Step 3: Cross multiply
    50,071.28x = 75,134.57 × 20,509.83
  4. Step 4: Simplify right side
    50,071.28x = 1,540,997,155.27
  5. Step 5: Solve for x
    x = 1,540,997,155.27/50,071.28
  6. Step 6: Final answer
    x = 30,776.07

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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.