Home / 81,802.10-112,919.06-51,581.41

Finding the Fourth Proportional to 81,802.10, 112,919.06 and 51,581.41

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Solution

The fourth proportional to 81,802.10, 112,919.06 and 51,581.41 is: 71,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,802.10 : 112,919.06 = 51,581.41 : x
  2. Step 2: Convert to fraction form
    81,802.10/112,919.06 = 51,581.41/x
  3. Step 3: Cross multiply
    81,802.10x = 112,919.06 × 51,581.41
  4. Step 4: Simplify right side
    81,802.10x = 5,824,524,177.33
  5. Step 5: Solve for x
    x = 5,824,524,177.33/81,802.10
  6. Step 6: Final answer
    x = 71,202.62

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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.