Home / 81,156.01-111,993.19-45,346.31

Finding the Fourth Proportional to 81,156.01, 111,993.19 and 45,346.31

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Solution

The fourth proportional to 81,156.01, 111,993.19 and 45,346.31 is: 62,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,156.01 : 111,993.19 = 45,346.31 : x
  2. Step 2: Convert to fraction form
    81,156.01/111,993.19 = 45,346.31/x
  3. Step 3: Cross multiply
    81,156.01x = 111,993.19 × 45,346.31
  4. Step 4: Simplify right side
    81,156.01x = 5,078,477,911.63
  5. Step 5: Solve for x
    x = 5,078,477,911.63/81,156.01
  6. Step 6: Final answer
    x = 62,576.73

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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.