Home / 42,834.97-64,267.83-19,140.54

Finding the Fourth Proportional to 42,834.97, 64,267.83 and 19,140.54

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Solution

The fourth proportional to 42,834.97, 64,267.83 and 19,140.54 is: 28,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,834.97 : 64,267.83 = 19,140.54 : x
  2. Step 2: Convert to fraction form
    42,834.97/64,267.83 = 19,140.54/x
  3. Step 3: Cross multiply
    42,834.97x = 64,267.83 × 19,140.54
  4. Step 4: Simplify right side
    42,834.97x = 1,230,120,553.79
  5. Step 5: Solve for x
    x = 1,230,120,553.79/42,834.97
  6. Step 6: Final answer
    x = 28,717.67

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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.