Home / 81,525.43-122,182.86-36,513.89

Finding the Fourth Proportional to 81,525.43, 122,182.86 and 36,513.89

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Solution

The fourth proportional to 81,525.43, 122,182.86 and 36,513.89 is: 54,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,525.43 : 122,182.86 = 36,513.89 : x
  2. Step 2: Convert to fraction form
    81,525.43/122,182.86 = 36,513.89/x
  3. Step 3: Cross multiply
    81,525.43x = 122,182.86 × 36,513.89
  4. Step 4: Simplify right side
    81,525.43x = 4,461,371,509.93
  5. Step 5: Solve for x
    x = 4,461,371,509.93/81,525.43
  6. Step 6: Final answer
    x = 54,723.68

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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.