Home / 50,021.50-69,030.95-30,150.78

Finding the Fourth Proportional to 50,021.50, 69,030.95 and 30,150.78

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Solution

The fourth proportional to 50,021.50, 69,030.95 and 30,150.78 is: 41,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,021.50 : 69,030.95 = 30,150.78 : x
  2. Step 2: Convert to fraction form
    50,021.50/69,030.95 = 30,150.78/x
  3. Step 3: Cross multiply
    50,021.50x = 69,030.95 × 30,150.78
  4. Step 4: Simplify right side
    50,021.50x = 2,081,336,986.64
  5. Step 5: Solve for x
    x = 2,081,336,986.64/50,021.50
  6. Step 6: Final answer
    x = 41,608.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.