Home / 84,040.22-115,975.52-45,799.78

Finding the Fourth Proportional to 84,040.22, 115,975.52 and 45,799.78

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Solution

The fourth proportional to 84,040.22, 115,975.52 and 45,799.78 is: 63,203.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,040.22 : 115,975.52 = 45,799.78 : x
  2. Step 2: Convert to fraction form
    84,040.22/115,975.52 = 45,799.78/x
  3. Step 3: Cross multiply
    84,040.22x = 115,975.52 × 45,799.78
  4. Step 4: Simplify right side
    84,040.22x = 5,311,652,974.28
  5. Step 5: Solve for x
    x = 5,311,652,974.28/84,040.22
  6. Step 6: Final answer
    x = 63,203.70

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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.