Home / 80,749.37-121,124.09-36,324.23

Finding the Fourth Proportional to 80,749.37, 121,124.09 and 36,324.23

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Solution

The fourth proportional to 80,749.37, 121,124.09 and 36,324.23 is: 54,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749.37 : 121,124.09 = 36,324.23 : x
  2. Step 2: Convert to fraction form
    80,749.37/121,124.09 = 36,324.23/x
  3. Step 3: Cross multiply
    80,749.37x = 121,124.09 × 36,324.23
  4. Step 4: Simplify right side
    80,749.37x = 4,399,738,516.46
  5. Step 5: Solve for x
    x = 4,399,738,516.46/80,749.37
  6. Step 6: Final answer
    x = 54,486.35

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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.