Home / 78,910.35-108,896.27-43,100.44

Finding the Fourth Proportional to 78,910.35, 108,896.27 and 43,100.44

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Solution

The fourth proportional to 78,910.35, 108,896.27 and 43,100.44 is: 59,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,910.35 : 108,896.27 = 43,100.44 : x
  2. Step 2: Convert to fraction form
    78,910.35/108,896.27 = 43,100.44/x
  3. Step 3: Cross multiply
    78,910.35x = 108,896.27 × 43,100.44
  4. Step 4: Simplify right side
    78,910.35x = 4,693,477,151.36
  5. Step 5: Solve for x
    x = 4,693,477,151.36/78,910.35
  6. Step 6: Final answer
    x = 59,478.60

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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.