Home / 85,271.36-127,906.94-29,106.80

Finding the Fourth Proportional to 85,271.36, 127,906.94 and 29,106.80

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Solution

The fourth proportional to 85,271.36, 127,906.94 and 29,106.80 is: 43,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271.36 : 127,906.94 = 29,106.80 : x
  2. Step 2: Convert to fraction form
    85,271.36/127,906.94 = 29,106.80/x
  3. Step 3: Cross multiply
    85,271.36x = 127,906.94 × 29,106.80
  4. Step 4: Simplify right side
    85,271.36x = 3,722,962,113.73
  5. Step 5: Solve for x
    x = 3,722,962,113.73/85,271.36
  6. Step 6: Final answer
    x = 43,660.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.