Home / 85,263.05-127,855.70-40,910.69

Finding the Fourth Proportional to 85,263.05, 127,855.70 and 40,910.69

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Solution

The fourth proportional to 85,263.05, 127,855.70 and 40,910.69 is: 61,347.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,263.05 : 127,855.70 = 40,910.69 : x
  2. Step 2: Convert to fraction form
    85,263.05/127,855.70 = 40,910.69/x
  3. Step 3: Cross multiply
    85,263.05x = 127,855.70 × 40,910.69
  4. Step 4: Simplify right side
    85,263.05x = 5,230,665,175.93
  5. Step 5: Solve for x
    x = 5,230,665,175.93/85,263.05
  6. Step 6: Final answer
    x = 61,347.38

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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.