Home / 90,845.60-125,370.54-50,561.06

Finding the Fourth Proportional to 90,845.60, 125,370.54 and 50,561.06

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Solution

The fourth proportional to 90,845.60, 125,370.54 and 50,561.06 is: 69,776.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.60 : 125,370.54 = 50,561.06 : x
  2. Step 2: Convert to fraction form
    90,845.60/125,370.54 = 50,561.06/x
  3. Step 3: Cross multiply
    90,845.60x = 125,370.54 × 50,561.06
  4. Step 4: Simplify right side
    90,845.60x = 6,338,866,768.32
  5. Step 5: Solve for x
    x = 6,338,866,768.32/90,845.60
  6. Step 6: Final answer
    x = 69,776.27

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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.