Home / 70,141.30-96,795-38,310.28

Finding the Fourth Proportional to 70,141.30, 96,795 and 38,310.28

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Solution

The fourth proportional to 70,141.30, 96,795 and 38,310.28 is: 52,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,141.30 : 96,795 = 38,310.28 : x
  2. Step 2: Convert to fraction form
    70,141.30/96,795 = 38,310.28/x
  3. Step 3: Cross multiply
    70,141.30x = 96,795 × 38,310.28
  4. Step 4: Simplify right side
    70,141.30x = 3,708,243,552.60
  5. Step 5: Solve for x
    x = 3,708,243,552.60/70,141.30
  6. Step 6: Final answer
    x = 52,868.19

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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.