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Finding the Fourth Proportional to 79,738, 110,043.48 and 43,928.08

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Solution

The fourth proportional to 79,738, 110,043.48 and 43,928.08 is: 60,623.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,738 : 110,043.48 = 43,928.08 : x
  2. Step 2: Convert to fraction form
    79,738/110,043.48 = 43,928.08/x
  3. Step 3: Cross multiply
    79,738x = 110,043.48 × 43,928.08
  4. Step 4: Simplify right side
    79,738x = 4,833,998,792.92
  5. Step 5: Solve for x
    x = 4,833,998,792.92/79,738
  6. Step 6: Final answer
    x = 60,623.53

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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.