Home / 79,555.36-119,330.24-20,391.52

Finding the Fourth Proportional to 79,555.36, 119,330.24 and 20,391.52

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Solution

The fourth proportional to 79,555.36, 119,330.24 and 20,391.52 is: 30,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,555.36 : 119,330.24 = 20,391.52 : x
  2. Step 2: Convert to fraction form
    79,555.36/119,330.24 = 20,391.52/x
  3. Step 3: Cross multiply
    79,555.36x = 119,330.24 × 20,391.52
  4. Step 4: Simplify right side
    79,555.36x = 2,433,324,975.56
  5. Step 5: Solve for x
    x = 2,433,324,975.56/79,555.36
  6. Step 6: Final answer
    x = 30,586.56

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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.