Home / 77,984.10-107,589.20-51,141.51

Finding the Fourth Proportional to 77,984.10, 107,589.20 and 51,141.51

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Solution

The fourth proportional to 77,984.10, 107,589.20 and 51,141.51 is: 70,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,984.10 : 107,589.20 = 51,141.51 : x
  2. Step 2: Convert to fraction form
    77,984.10/107,589.20 = 51,141.51/x
  3. Step 3: Cross multiply
    77,984.10x = 107,589.20 × 51,141.51
  4. Step 4: Simplify right side
    77,984.10x = 5,502,273,891.98
  5. Step 5: Solve for x
    x = 5,502,273,891.98/77,984.10
  6. Step 6: Final answer
    x = 70,556.36

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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.