Home / 51,469.20-71,021.49-28,809.45

Finding the Fourth Proportional to 51,469.20, 71,021.49 and 28,809.45

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Solution

The fourth proportional to 51,469.20, 71,021.49 and 28,809.45 is: 39,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,469.20 : 71,021.49 = 28,809.45 : x
  2. Step 2: Convert to fraction form
    51,469.20/71,021.49 = 28,809.45/x
  3. Step 3: Cross multiply
    51,469.20x = 71,021.49 × 28,809.45
  4. Step 4: Simplify right side
    51,469.20x = 2,046,090,065.08
  5. Step 5: Solve for x
    x = 2,046,090,065.08/51,469.20
  6. Step 6: Final answer
    x = 39,753.68

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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.