Home / 70,350.82-97,080.38-38,513.58

Finding the Fourth Proportional to 70,350.82, 97,080.38 and 38,513.58

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Solution

The fourth proportional to 70,350.82, 97,080.38 and 38,513.58 is: 53,146.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,350.82 : 97,080.38 = 38,513.58 : x
  2. Step 2: Convert to fraction form
    70,350.82/97,080.38 = 38,513.58/x
  3. Step 3: Cross multiply
    70,350.82x = 97,080.38 × 38,513.58
  4. Step 4: Simplify right side
    70,350.82x = 3,738,912,981.56
  5. Step 5: Solve for x
    x = 3,738,912,981.56/70,350.82
  6. Step 6: Final answer
    x = 53,146.69

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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.