Home / 77,959.22-107,511.99-51,091.97

Finding the Fourth Proportional to 77,959.22, 107,511.99 and 51,091.97

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Solution

The fourth proportional to 77,959.22, 107,511.99 and 51,091.97 is: 70,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,959.22 : 107,511.99 = 51,091.97 : x
  2. Step 2: Convert to fraction form
    77,959.22/107,511.99 = 51,091.97/x
  3. Step 3: Cross multiply
    77,959.22x = 107,511.99 × 51,091.97
  4. Step 4: Simplify right side
    77,959.22x = 5,492,999,367.72
  5. Step 5: Solve for x
    x = 5,492,999,367.72/77,959.22
  6. Step 6: Final answer
    x = 70,459.91

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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.