Home / 70,390.27-97,138.59-38,560.30

Finding the Fourth Proportional to 70,390.27, 97,138.59 and 38,560.30

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Solution

The fourth proportional to 70,390.27, 97,138.59 and 38,560.30 is: 53,213.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,390.27 : 97,138.59 = 38,560.30 : x
  2. Step 2: Convert to fraction form
    70,390.27/97,138.59 = 38,560.30/x
  3. Step 3: Cross multiply
    70,390.27x = 97,138.59 × 38,560.30
  4. Step 4: Simplify right side
    70,390.27x = 3,745,693,171.98
  5. Step 5: Solve for x
    x = 3,745,693,171.98/70,390.27
  6. Step 6: Final answer
    x = 53,213.22

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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.