Home / 70,186.37-96,857.06-39,971.70

Finding the Fourth Proportional to 70,186.37, 96,857.06 and 39,971.70

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Solution

The fourth proportional to 70,186.37, 96,857.06 and 39,971.70 is: 55,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,186.37 : 96,857.06 = 39,971.70 : x
  2. Step 2: Convert to fraction form
    70,186.37/96,857.06 = 39,971.70/x
  3. Step 3: Cross multiply
    70,186.37x = 96,857.06 × 39,971.70
  4. Step 4: Simplify right side
    70,186.37x = 3,871,541,145.34
  5. Step 5: Solve for x
    x = 3,871,541,145.34/70,186.37
  6. Step 6: Final answer
    x = 55,160.87

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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.