Home / 85,243.03-127,859.91-26,078.70

Finding the Fourth Proportional to 85,243.03, 127,859.91 and 26,078.70

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Solution

The fourth proportional to 85,243.03, 127,859.91 and 26,078.70 is: 39,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,243.03 : 127,859.91 = 26,078.70 : x
  2. Step 2: Convert to fraction form
    85,243.03/127,859.91 = 26,078.70/x
  3. Step 3: Cross multiply
    85,243.03x = 127,859.91 × 26,078.70
  4. Step 4: Simplify right side
    85,243.03x = 3,334,420,234.92
  5. Step 5: Solve for x
    x = 3,334,420,234.92/85,243.03
  6. Step 6: Final answer
    x = 39,116.63

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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.