Home / 86,900.56-119,919.36-49,174

Finding the Fourth Proportional to 86,900.56, 119,919.36 and 49,174

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Solution

The fourth proportional to 86,900.56, 119,919.36 and 49,174 is: 67,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,900.56 : 119,919.36 = 49,174 : x
  2. Step 2: Convert to fraction form
    86,900.56/119,919.36 = 49,174/x
  3. Step 3: Cross multiply
    86,900.56x = 119,919.36 × 49,174
  4. Step 4: Simplify right side
    86,900.56x = 5,896,914,608.64
  5. Step 5: Solve for x
    x = 5,896,914,608.64/86,900.56
  6. Step 6: Final answer
    x = 67,858.19

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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.