Home / 85,733.84-128,600.77-35,786.69

Finding the Fourth Proportional to 85,733.84, 128,600.77 and 35,786.69

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Solution

The fourth proportional to 85,733.84, 128,600.77 and 35,786.69 is: 53,680.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,733.84 : 128,600.77 = 35,786.69 : x
  2. Step 2: Convert to fraction form
    85,733.84/128,600.77 = 35,786.69/x
  3. Step 3: Cross multiply
    85,733.84x = 128,600.77 × 35,786.69
  4. Step 4: Simplify right side
    85,733.84x = 4,602,195,067.81
  5. Step 5: Solve for x
    x = 4,602,195,067.81/85,733.84
  6. Step 6: Final answer
    x = 53,680.03

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Similar ratio
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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.