Home / 79,261.62-109,383.60-43,455.54

Finding the Fourth Proportional to 79,261.62, 109,383.60 and 43,455.54

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Solution

The fourth proportional to 79,261.62, 109,383.60 and 43,455.54 is: 59,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.62 : 109,383.60 = 43,455.54 : x
  2. Step 2: Convert to fraction form
    79,261.62/109,383.60 = 43,455.54/x
  3. Step 3: Cross multiply
    79,261.62x = 109,383.60 × 43,455.54
  4. Step 4: Simplify right side
    79,261.62x = 4,753,323,405.14
  5. Step 5: Solve for x
    x = 4,753,323,405.14/79,261.62
  6. Step 6: Final answer
    x = 59,970.05

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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.