Home / 85,736.80-128,625.46-35,789.14

Finding the Fourth Proportional to 85,736.80, 128,625.46 and 35,789.14

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Solution

The fourth proportional to 85,736.80, 128,625.46 and 35,789.14 is: 53,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,736.80 : 128,625.46 = 35,789.14 : x
  2. Step 2: Convert to fraction form
    85,736.80/128,625.46 = 35,789.14/x
  3. Step 3: Cross multiply
    85,736.80x = 128,625.46 × 35,789.14
  4. Step 4: Simplify right side
    85,736.80x = 4,603,394,595.50
  5. Step 5: Solve for x
    x = 4,603,394,595.50/85,736.80
  6. Step 6: Final answer
    x = 53,692.17

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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.