Home / 66,290.44-91,479.32-36,075.86

Finding the Fourth Proportional to 66,290.44, 91,479.32 and 36,075.86

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Solution

The fourth proportional to 66,290.44, 91,479.32 and 36,075.86 is: 49,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,290.44 : 91,479.32 = 36,075.86 : x
  2. Step 2: Convert to fraction form
    66,290.44/91,479.32 = 36,075.86/x
  3. Step 3: Cross multiply
    66,290.44x = 91,479.32 × 36,075.86
  4. Step 4: Simplify right side
    66,290.44x = 3,300,195,141.22
  5. Step 5: Solve for x
    x = 3,300,195,141.22/66,290.44
  6. Step 6: Final answer
    x = 49,783.88

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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.