Home / 85,102.49-127,672.70-25,942.77

Finding the Fourth Proportional to 85,102.49, 127,672.70 and 25,942.77

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Solution

The fourth proportional to 85,102.49, 127,672.70 and 25,942.77 is: 38,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,102.49 : 127,672.70 = 25,942.77 : x
  2. Step 2: Convert to fraction form
    85,102.49/127,672.70 = 25,942.77/x
  3. Step 3: Cross multiply
    85,102.49x = 127,672.70 × 25,942.77
  4. Step 4: Simplify right side
    85,102.49x = 3,312,183,361.67
  5. Step 5: Solve for x
    x = 3,312,183,361.67/85,102.49
  6. Step 6: Final answer
    x = 38,919.93

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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.