Home / 85,949.57-128,976.19-36,701.57

Finding the Fourth Proportional to 85,949.57, 128,976.19 and 36,701.57

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Solution

The fourth proportional to 85,949.57, 128,976.19 and 36,701.57 is: 55,074.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,949.57 : 128,976.19 = 36,701.57 : x
  2. Step 2: Convert to fraction form
    85,949.57/128,976.19 = 36,701.57/x
  3. Step 3: Cross multiply
    85,949.57x = 128,976.19 × 36,701.57
  4. Step 4: Simplify right side
    85,949.57x = 4,733,627,837.23
  5. Step 5: Solve for x
    x = 4,733,627,837.23/85,949.57
  6. Step 6: Final answer
    x = 55,074.48

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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.