Home / 89,448.63-134,074.32-57,783.70

Finding the Fourth Proportional to 89,448.63, 134,074.32 and 57,783.70

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Solution

The fourth proportional to 89,448.63, 134,074.32 and 57,783.70 is: 86,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,448.63 : 134,074.32 = 57,783.70 : x
  2. Step 2: Convert to fraction form
    89,448.63/134,074.32 = 57,783.70/x
  3. Step 3: Cross multiply
    89,448.63x = 134,074.32 × 57,783.70
  4. Step 4: Simplify right side
    89,448.63x = 7,747,310,284.58
  5. Step 5: Solve for x
    x = 7,747,310,284.58/89,448.63
  6. Step 6: Final answer
    x = 86,611.84

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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.