Home / 70,986.45-97,964.19-39,157.37

Finding the Fourth Proportional to 70,986.45, 97,964.19 and 39,157.37

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Solution

The fourth proportional to 70,986.45, 97,964.19 and 39,157.37 is: 54,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,986.45 : 97,964.19 = 39,157.37 : x
  2. Step 2: Convert to fraction form
    70,986.45/97,964.19 = 39,157.37/x
  3. Step 3: Cross multiply
    70,986.45x = 97,964.19 × 39,157.37
  4. Step 4: Simplify right side
    70,986.45x = 3,836,019,544.76
  5. Step 5: Solve for x
    x = 3,836,019,544.76/70,986.45
  6. Step 6: Final answer
    x = 54,038.76

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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.