Home / 66,235.35-91,372.64-39,358.83

Finding the Fourth Proportional to 66,235.35, 91,372.64 and 39,358.83

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Solution

The fourth proportional to 66,235.35, 91,372.64 and 39,358.83 is: 54,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235.35 : 91,372.64 = 39,358.83 : x
  2. Step 2: Convert to fraction form
    66,235.35/91,372.64 = 39,358.83/x
  3. Step 3: Cross multiply
    66,235.35x = 91,372.64 × 39,358.83
  4. Step 4: Simplify right side
    66,235.35x = 3,596,320,007.62
  5. Step 5: Solve for x
    x = 3,596,320,007.62/66,235.35
  6. Step 6: Final answer
    x = 54,296.08

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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.