Home / 51,081.26-76,693.64-26,139.20

Finding the Fourth Proportional to 51,081.26, 76,693.64 and 26,139.20

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Solution

The fourth proportional to 51,081.26, 76,693.64 and 26,139.20 is: 39,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,081.26 : 76,693.64 = 26,139.20 : x
  2. Step 2: Convert to fraction form
    51,081.26/76,693.64 = 26,139.20/x
  3. Step 3: Cross multiply
    51,081.26x = 76,693.64 × 26,139.20
  4. Step 4: Simplify right side
    51,081.26x = 2,004,709,880.52
  5. Step 5: Solve for x
    x = 2,004,709,880.52/51,081.26
  6. Step 6: Final answer
    x = 39,245.51

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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.