Home / 68,085.68-93,944.60-39,785.84

Finding the Fourth Proportional to 68,085.68, 93,944.60 and 39,785.84

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Solution

The fourth proportional to 68,085.68, 93,944.60 and 39,785.84 is: 54,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,085.68 : 93,944.60 = 39,785.84 : x
  2. Step 2: Convert to fraction form
    68,085.68/93,944.60 = 39,785.84/x
  3. Step 3: Cross multiply
    68,085.68x = 93,944.60 × 39,785.84
  4. Step 4: Simplify right side
    68,085.68x = 3,737,664,824.46
  5. Step 5: Solve for x
    x = 3,737,664,824.46/68,085.68
  6. Step 6: Final answer
    x = 54,896.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.