Home / 57,787.67-86,688.73-19,844.30

Finding the Fourth Proportional to 57,787.67, 86,688.73 and 19,844.30

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Solution

The fourth proportional to 57,787.67, 86,688.73 and 19,844.30 is: 29,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,787.67 : 86,688.73 = 19,844.30 : x
  2. Step 2: Convert to fraction form
    57,787.67/86,688.73 = 19,844.30/x
  3. Step 3: Cross multiply
    57,787.67x = 86,688.73 × 19,844.30
  4. Step 4: Simplify right side
    57,787.67x = 1,720,277,164.74
  5. Step 5: Solve for x
    x = 1,720,277,164.74/57,787.67
  6. Step 6: Final answer
    x = 29,768.93

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1.5x scale

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.