Home / 66,317.12-99,476.72-36,921.80

Finding the Fourth Proportional to 66,317.12, 99,476.72 and 36,921.80

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Solution

The fourth proportional to 66,317.12, 99,476.72 and 36,921.80 is: 55,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,317.12 : 99,476.72 = 36,921.80 : x
  2. Step 2: Convert to fraction form
    66,317.12/99,476.72 = 36,921.80/x
  3. Step 3: Cross multiply
    66,317.12x = 99,476.72 × 36,921.80
  4. Step 4: Simplify right side
    66,317.12x = 3,672,858,878.50
  5. Step 5: Solve for x
    x = 3,672,858,878.50/66,317.12
  6. Step 6: Final answer
    x = 55,383.27

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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.