Home / 85,666.68-118,243.92-49,863.60

Finding the Fourth Proportional to 85,666.68, 118,243.92 and 49,863.60

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Solution

The fourth proportional to 85,666.68, 118,243.92 and 49,863.60 is: 68,825.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.68 : 118,243.92 = 49,863.60 : x
  2. Step 2: Convert to fraction form
    85,666.68/118,243.92 = 49,863.60/x
  3. Step 3: Cross multiply
    85,666.68x = 118,243.92 × 49,863.60
  4. Step 4: Simplify right side
    85,666.68x = 5,896,067,529.31
  5. Step 5: Solve for x
    x = 5,896,067,529.31/85,666.68
  6. Step 6: Final answer
    x = 68,825.68

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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.