Home / 90,833.54-125,336.31-56,825.60

Finding the Fourth Proportional to 90,833.54, 125,336.31 and 56,825.60

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Solution

The fourth proportional to 90,833.54, 125,336.31 and 56,825.60 is: 78,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,833.54 : 125,336.31 = 56,825.60 : x
  2. Step 2: Convert to fraction form
    90,833.54/125,336.31 = 56,825.60/x
  3. Step 3: Cross multiply
    90,833.54x = 125,336.31 × 56,825.60
  4. Step 4: Simplify right side
    90,833.54x = 7,122,311,017.54
  5. Step 5: Solve for x
    x = 7,122,311,017.54/90,833.54
  6. Step 6: Final answer
    x = 78,410.59

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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.