Home / 50,079.29-75,138.37-20,511.05

Finding the Fourth Proportional to 50,079.29, 75,138.37 and 20,511.05

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Solution

The fourth proportional to 50,079.29, 75,138.37 and 20,511.05 is: 30,774.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,079.29 : 75,138.37 = 20,511.05 : x
  2. Step 2: Convert to fraction form
    50,079.29/75,138.37 = 20,511.05/x
  3. Step 3: Cross multiply
    50,079.29x = 75,138.37 × 20,511.05
  4. Step 4: Simplify right side
    50,079.29x = 1,541,166,437.02
  5. Step 5: Solve for x
    x = 1,541,166,437.02/50,079.29
  6. Step 6: Final answer
    x = 30,774.53

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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.