Home / 66,699.36-92,033.68-39,852.64

Finding the Fourth Proportional to 66,699.36, 92,033.68 and 39,852.64

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Solution

The fourth proportional to 66,699.36, 92,033.68 and 39,852.64 is: 54,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,699.36 : 92,033.68 = 39,852.64 : x
  2. Step 2: Convert to fraction form
    66,699.36/92,033.68 = 39,852.64/x
  3. Step 3: Cross multiply
    66,699.36x = 92,033.68 × 39,852.64
  4. Step 4: Simplify right side
    66,699.36x = 3,667,785,116.92
  5. Step 5: Solve for x
    x = 3,667,785,116.92/66,699.36
  6. Step 6: Final answer
    x = 54,989.81

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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.