Home / 82,987.28-114,485.40-51,144.56

Finding the Fourth Proportional to 82,987.28, 114,485.40 and 51,144.56

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Solution

The fourth proportional to 82,987.28, 114,485.40 and 51,144.56 is: 70,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,987.28 : 114,485.40 = 51,144.56 : x
  2. Step 2: Convert to fraction form
    82,987.28/114,485.40 = 51,144.56/x
  3. Step 3: Cross multiply
    82,987.28x = 114,485.40 × 51,144.56
  4. Step 4: Simplify right side
    82,987.28x = 5,855,305,409.42
  5. Step 5: Solve for x
    x = 5,855,305,409.42/82,987.28
  6. Step 6: Final answer
    x = 70,556.66

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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.