Home / 66,491.08-99,719.88-33,187.12

Finding the Fourth Proportional to 66,491.08, 99,719.88 and 33,187.12

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Solution

The fourth proportional to 66,491.08, 99,719.88 and 33,187.12 is: 49,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,491.08 : 99,719.88 = 33,187.12 : x
  2. Step 2: Convert to fraction form
    66,491.08/99,719.88 = 33,187.12/x
  3. Step 3: Cross multiply
    66,491.08x = 99,719.88 × 33,187.12
  4. Step 4: Simplify right side
    66,491.08x = 3,309,415,623.95
  5. Step 5: Solve for x
    x = 3,309,415,623.95/66,491.08
  6. Step 6: Final answer
    x = 49,772.32

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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.