Home / 90,351.55-135,533.98-23,791.22

Finding the Fourth Proportional to 90,351.55, 135,533.98 and 23,791.22

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Solution

The fourth proportional to 90,351.55, 135,533.98 and 23,791.22 is: 35,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,351.55 : 135,533.98 = 23,791.22 : x
  2. Step 2: Convert to fraction form
    90,351.55/135,533.98 = 23,791.22/x
  3. Step 3: Cross multiply
    90,351.55x = 135,533.98 × 23,791.22
  4. Step 4: Simplify right side
    90,351.55x = 3,224,518,662.89
  5. Step 5: Solve for x
    x = 3,224,518,662.89/90,351.55
  6. Step 6: Final answer
    x = 35,688.58

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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.