Home / 82,631.73-113,989.82-53,968.19

Finding the Fourth Proportional to 82,631.73, 113,989.82 and 53,968.19

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Solution

The fourth proportional to 82,631.73, 113,989.82 and 53,968.19 is: 74,448.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,631.73 : 113,989.82 = 53,968.19 : x
  2. Step 2: Convert to fraction form
    82,631.73/113,989.82 = 53,968.19/x
  3. Step 3: Cross multiply
    82,631.73x = 113,989.82 × 53,968.19
  4. Step 4: Simplify right side
    82,631.73x = 6,151,823,812.01
  5. Step 5: Solve for x
    x = 6,151,823,812.01/82,631.73
  6. Step 6: Final answer
    x = 74,448.68

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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.