Home / 89,786.85-123,907.72-49,502.31

Finding the Fourth Proportional to 89,786.85, 123,907.72 and 49,502.31

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Solution

The fourth proportional to 89,786.85, 123,907.72 and 49,502.31 is: 68,314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,786.85 : 123,907.72 = 49,502.31 : x
  2. Step 2: Convert to fraction form
    89,786.85/123,907.72 = 49,502.31/x
  3. Step 3: Cross multiply
    89,786.85x = 123,907.72 × 49,502.31
  4. Step 4: Simplify right side
    89,786.85x = 6,133,717,871.05
  5. Step 5: Solve for x
    x = 6,133,717,871.05/89,786.85
  6. Step 6: Final answer
    x = 68,314.22

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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.