Home / 65,928.62-90,981.60-39,084.32

Finding the Fourth Proportional to 65,928.62, 90,981.60 and 39,084.32

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Solution

The fourth proportional to 65,928.62, 90,981.60 and 39,084.32 is: 53,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,928.62 : 90,981.60 = 39,084.32 : x
  2. Step 2: Convert to fraction form
    65,928.62/90,981.60 = 39,084.32/x
  3. Step 3: Cross multiply
    65,928.62x = 90,981.60 × 39,084.32
  4. Step 4: Simplify right side
    65,928.62x = 3,555,953,968.51
  5. Step 5: Solve for x
    x = 3,555,953,968.51/65,928.62
  6. Step 6: Final answer
    x = 53,936.42

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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.