Home / 81,911.40-113,059.11-50,106.93

Finding the Fourth Proportional to 81,911.40, 113,059.11 and 50,106.93

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Solution

The fourth proportional to 81,911.40, 113,059.11 and 50,106.93 is: 69,160.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,911.40 : 113,059.11 = 50,106.93 : x
  2. Step 2: Convert to fraction form
    81,911.40/113,059.11 = 50,106.93/x
  3. Step 3: Cross multiply
    81,911.40x = 113,059.11 × 50,106.93
  4. Step 4: Simplify right side
    81,911.40x = 5,665,044,910.63
  5. Step 5: Solve for x
    x = 5,665,044,910.63/81,911.40
  6. Step 6: Final answer
    x = 69,160.64

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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.