Home / 90,889.75-125,437.58-53,195.59

Finding the Fourth Proportional to 90,889.75, 125,437.58 and 53,195.59

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Solution

The fourth proportional to 90,889.75, 125,437.58 and 53,195.59 is: 73,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,889.75 : 125,437.58 = 53,195.59 : x
  2. Step 2: Convert to fraction form
    90,889.75/125,437.58 = 53,195.59/x
  3. Step 3: Cross multiply
    90,889.75x = 125,437.58 × 53,195.59
  4. Step 4: Simplify right side
    90,889.75x = 6,672,726,076.27
  5. Step 5: Solve for x
    x = 6,672,726,076.27/90,889.75
  6. Step 6: Final answer
    x = 73,415.61

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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.