Home / 70,390.26-97,138.58-38,560.30

Finding the Fourth Proportional to 70,390.26, 97,138.58 and 38,560.30

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Solution

The fourth proportional to 70,390.26, 97,138.58 and 38,560.30 is: 53,213.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,390.26 : 97,138.58 = 38,560.30 : x
  2. Step 2: Convert to fraction form
    70,390.26/97,138.58 = 38,560.30/x
  3. Step 3: Cross multiply
    70,390.26x = 97,138.58 × 38,560.30
  4. Step 4: Simplify right side
    70,390.26x = 3,745,692,786.37
  5. Step 5: Solve for x
    x = 3,745,692,786.37/70,390.26
  6. Step 6: Final answer
    x = 53,213.23

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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.