Home / 81,028.42-111,818.58-47,040.07

Finding the Fourth Proportional to 81,028.42, 111,818.58 and 47,040.07

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Solution

The fourth proportional to 81,028.42, 111,818.58 and 47,040.07 is: 64,914.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.42 : 111,818.58 = 47,040.07 : x
  2. Step 2: Convert to fraction form
    81,028.42/111,818.58 = 47,040.07/x
  3. Step 3: Cross multiply
    81,028.42x = 111,818.58 × 47,040.07
  4. Step 4: Simplify right side
    81,028.42x = 5,259,953,668.55
  5. Step 5: Solve for x
    x = 5,259,953,668.55/81,028.42
  6. Step 6: Final answer
    x = 64,914.92

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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.