Home / 85,993.72-118,711.38-57,361.03

Finding the Fourth Proportional to 85,993.72, 118,711.38 and 57,361.03

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Solution

The fourth proportional to 85,993.72, 118,711.38 and 57,361.03 is: 79,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,993.72 : 118,711.38 = 57,361.03 : x
  2. Step 2: Convert to fraction form
    85,993.72/118,711.38 = 57,361.03/x
  3. Step 3: Cross multiply
    85,993.72x = 118,711.38 × 57,361.03
  4. Step 4: Simplify right side
    85,993.72x = 6,809,407,029.52
  5. Step 5: Solve for x
    x = 6,809,407,029.52/85,993.72
  6. Step 6: Final answer
    x = 79,184.93

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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.