Home / 55,112.51-82,705.66-19,572.38

Finding the Fourth Proportional to 55,112.51, 82,705.66 and 19,572.38

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Solution

The fourth proportional to 55,112.51, 82,705.66 and 19,572.38 is: 29,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112.51 : 82,705.66 = 19,572.38 : x
  2. Step 2: Convert to fraction form
    55,112.51/82,705.66 = 19,572.38/x
  3. Step 3: Cross multiply
    55,112.51x = 82,705.66 × 19,572.38
  4. Step 4: Simplify right side
    55,112.51x = 1,618,746,453.36
  5. Step 5: Solve for x
    x = 1,618,746,453.36/55,112.51
  6. Step 6: Final answer
    x = 29,371.67

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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.