Home / 89,943.12-124,125.66-49,662.60

Finding the Fourth Proportional to 89,943.12, 124,125.66 and 49,662.60

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Solution

The fourth proportional to 89,943.12, 124,125.66 and 49,662.60 is: 68,536.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,943.12 : 124,125.66 = 49,662.60 : x
  2. Step 2: Convert to fraction form
    89,943.12/124,125.66 = 49,662.60/x
  3. Step 3: Cross multiply
    89,943.12x = 124,125.66 × 49,662.60
  4. Step 4: Simplify right side
    89,943.12x = 6,164,403,002.32
  5. Step 5: Solve for x
    x = 6,164,403,002.32/89,943.12
  6. Step 6: Final answer
    x = 68,536.68

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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.