Home / 78,734.36-108,649.49-44,738.39

Finding the Fourth Proportional to 78,734.36, 108,649.49 and 44,738.39

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Solution

The fourth proportional to 78,734.36, 108,649.49 and 44,738.39 is: 61,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,734.36 : 108,649.49 = 44,738.39 : x
  2. Step 2: Convert to fraction form
    78,734.36/108,649.49 = 44,738.39/x
  3. Step 3: Cross multiply
    78,734.36x = 108,649.49 × 44,738.39
  4. Step 4: Simplify right side
    78,734.36x = 4,860,802,489.98
  5. Step 5: Solve for x
    x = 4,860,802,489.98/78,734.36
  6. Step 6: Final answer
    x = 61,736.74

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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.