Home / 89,120.24-122,982.32-53,289.12

Finding the Fourth Proportional to 89,120.24, 122,982.32 and 53,289.12

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Solution

The fourth proportional to 89,120.24, 122,982.32 and 53,289.12 is: 73,536.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,120.24 : 122,982.32 = 53,289.12 : x
  2. Step 2: Convert to fraction form
    89,120.24/122,982.32 = 53,289.12/x
  3. Step 3: Cross multiply
    89,120.24x = 122,982.32 × 53,289.12
  4. Step 4: Simplify right side
    89,120.24x = 6,553,619,608.36
  5. Step 5: Solve for x
    x = 6,553,619,608.36/89,120.24
  6. Step 6: Final answer
    x = 73,536.83

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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.