Home / 85,933.71-128,917.58-26,766.86

Finding the Fourth Proportional to 85,933.71, 128,917.58 and 26,766.86

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Solution

The fourth proportional to 85,933.71, 128,917.58 and 26,766.86 is: 40,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,933.71 : 128,917.58 = 26,766.86 : x
  2. Step 2: Convert to fraction form
    85,933.71/128,917.58 = 26,766.86/x
  3. Step 3: Cross multiply
    85,933.71x = 128,917.58 × 26,766.86
  4. Step 4: Simplify right side
    85,933.71x = 3,450,718,036.98
  5. Step 5: Solve for x
    x = 3,450,718,036.98/85,933.71
  6. Step 6: Final answer
    x = 40,155.58

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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.