Home / 81,873.03-112,984.75-45,573.69

Finding the Fourth Proportional to 81,873.03, 112,984.75 and 45,573.69

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Solution

The fourth proportional to 81,873.03, 112,984.75 and 45,573.69 is: 62,891.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,873.03 : 112,984.75 = 45,573.69 : x
  2. Step 2: Convert to fraction form
    81,873.03/112,984.75 = 45,573.69/x
  3. Step 3: Cross multiply
    81,873.03x = 112,984.75 × 45,573.69
  4. Step 4: Simplify right side
    81,873.03x = 5,149,131,901.80
  5. Step 5: Solve for x
    x = 5,149,131,901.80/81,873.03
  6. Step 6: Final answer
    x = 62,891.67

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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.