Home / 77,427.45-106,843.41-43,431.21

Finding the Fourth Proportional to 77,427.45, 106,843.41 and 43,431.21

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Solution

The fourth proportional to 77,427.45, 106,843.41 and 43,431.21 is: 59,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,427.45 : 106,843.41 = 43,431.21 : x
  2. Step 2: Convert to fraction form
    77,427.45/106,843.41 = 43,431.21/x
  3. Step 3: Cross multiply
    77,427.45x = 106,843.41 × 43,431.21
  4. Step 4: Simplify right side
    77,427.45x = 4,640,338,576.83
  5. Step 5: Solve for x
    x = 4,640,338,576.83/77,427.45
  6. Step 6: Final answer
    x = 59,931.44

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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.