Home / 81,015.27-111,824.54-47,031.39

Finding the Fourth Proportional to 81,015.27, 111,824.54 and 47,031.39

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Solution

The fourth proportional to 81,015.27, 111,824.54 and 47,031.39 is: 64,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,015.27 : 111,824.54 = 47,031.39 : x
  2. Step 2: Convert to fraction form
    81,015.27/111,824.54 = 47,031.39/x
  3. Step 3: Cross multiply
    81,015.27x = 111,824.54 × 47,031.39
  4. Step 4: Simplify right side
    81,015.27x = 5,259,263,317.15
  5. Step 5: Solve for x
    x = 5,259,263,317.15/81,015.27
  6. Step 6: Final answer
    x = 64,916.94

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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.