Home / 70,410.27-97,141.89-40,173.78

Finding the Fourth Proportional to 70,410.27, 97,141.89 and 40,173.78

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Solution

The fourth proportional to 70,410.27, 97,141.89 and 40,173.78 is: 55,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,410.27 : 97,141.89 = 40,173.78 : x
  2. Step 2: Convert to fraction form
    70,410.27/97,141.89 = 40,173.78/x
  3. Step 3: Cross multiply
    70,410.27x = 97,141.89 × 40,173.78
  4. Step 4: Simplify right side
    70,410.27x = 3,902,556,917.64
  5. Step 5: Solve for x
    x = 3,902,556,917.64/70,410.27
  6. Step 6: Final answer
    x = 55,425.96

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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.