Home / 45,210.81-67,819.47-11,930.49

Finding the Fourth Proportional to 45,210.81, 67,819.47 and 11,930.49

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Solution

The fourth proportional to 45,210.81, 67,819.47 and 11,930.49 is: 17,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,210.81 : 67,819.47 = 11,930.49 : x
  2. Step 2: Convert to fraction form
    45,210.81/67,819.47 = 11,930.49/x
  3. Step 3: Cross multiply
    45,210.81x = 67,819.47 × 11,930.49
  4. Step 4: Simplify right side
    45,210.81x = 809,119,508.64
  5. Step 5: Solve for x
    x = 809,119,508.64/45,210.81
  6. Step 6: Final answer
    x = 17,896.59

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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.