Home / 90,828.58-125,329-50,542.22

Finding the Fourth Proportional to 90,828.58, 125,329 and 50,542.22

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Solution

The fourth proportional to 90,828.58, 125,329 and 50,542.22 is: 69,740.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828.58 : 125,329 = 50,542.22 : x
  2. Step 2: Convert to fraction form
    90,828.58/125,329 = 50,542.22/x
  3. Step 3: Cross multiply
    90,828.58x = 125,329 × 50,542.22
  4. Step 4: Simplify right side
    90,828.58x = 6,334,405,890.38
  5. Step 5: Solve for x
    x = 6,334,405,890.38/90,828.58
  6. Step 6: Final answer
    x = 69,740.23

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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.