Home / 55,848.12-83,776.25-20,787.75

Finding the Fourth Proportional to 55,848.12, 83,776.25 and 20,787.75

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Solution

The fourth proportional to 55,848.12, 83,776.25 and 20,787.75 is: 31,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,848.12 : 83,776.25 = 20,787.75 : x
  2. Step 2: Convert to fraction form
    55,848.12/83,776.25 = 20,787.75/x
  3. Step 3: Cross multiply
    55,848.12x = 83,776.25 × 20,787.75
  4. Step 4: Simplify right side
    55,848.12x = 1,741,519,637.00
  5. Step 5: Solve for x
    x = 1,741,519,637.00/55,848.12
  6. Step 6: Final answer
    x = 31,183.14

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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.