Home / 53,083.71-79,625.55-13,640.85

Finding the Fourth Proportional to 53,083.71, 79,625.55 and 13,640.85

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Solution

The fourth proportional to 53,083.71, 79,625.55 and 13,640.85 is: 20,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,083.71 : 79,625.55 = 13,640.85 : x
  2. Step 2: Convert to fraction form
    53,083.71/79,625.55 = 13,640.85/x
  3. Step 3: Cross multiply
    53,083.71x = 79,625.55 × 13,640.85
  4. Step 4: Simplify right side
    53,083.71x = 1,086,160,183.72
  5. Step 5: Solve for x
    x = 1,086,160,183.72/53,083.71
  6. Step 6: Final answer
    x = 20,461.27

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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.