Home / 85,012.75-127,524.39-25,852.78

Finding the Fourth Proportional to 85,012.75, 127,524.39 and 25,852.78

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Solution

The fourth proportional to 85,012.75, 127,524.39 and 25,852.78 is: 38,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.75 : 127,524.39 = 25,852.78 : x
  2. Step 2: Convert to fraction form
    85,012.75/127,524.39 = 25,852.78/x
  3. Step 3: Cross multiply
    85,012.75x = 127,524.39 × 25,852.78
  4. Step 4: Simplify right side
    85,012.75x = 3,296,859,999.30
  5. Step 5: Solve for x
    x = 3,296,859,999.30/85,012.75
  6. Step 6: Final answer
    x = 38,780.77

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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.