Home / 57,153.33-78,871.58-31,661.34

Finding the Fourth Proportional to 57,153.33, 78,871.58 and 31,661.34

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Solution

The fourth proportional to 57,153.33, 78,871.58 and 31,661.34 is: 43,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.33 : 78,871.58 = 31,661.34 : x
  2. Step 2: Convert to fraction form
    57,153.33/78,871.58 = 31,661.34/x
  3. Step 3: Cross multiply
    57,153.33x = 78,871.58 × 31,661.34
  4. Step 4: Simplify right side
    57,153.33x = 2,497,180,285.64
  5. Step 5: Solve for x
    x = 2,497,180,285.64/57,153.33
  6. Step 6: Final answer
    x = 43,692.65

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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.