Home / 58,858.10-81,183.04-38,708.54

Finding the Fourth Proportional to 58,858.10, 81,183.04 and 38,708.54

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Solution

The fourth proportional to 58,858.10, 81,183.04 and 38,708.54 is: 53,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,858.10 : 81,183.04 = 38,708.54 : x
  2. Step 2: Convert to fraction form
    58,858.10/81,183.04 = 38,708.54/x
  3. Step 3: Cross multiply
    58,858.10x = 81,183.04 × 38,708.54
  4. Step 4: Simplify right side
    58,858.10x = 3,142,476,351.70
  5. Step 5: Solve for x
    x = 3,142,476,351.70/58,858.10
  6. Step 6: Final answer
    x = 53,390.72

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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.