Home / 66,428.78-99,509.52-33,047.60

Finding the Fourth Proportional to 66,428.78, 99,509.52 and 33,047.60

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Solution

The fourth proportional to 66,428.78, 99,509.52 and 33,047.60 is: 49,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428.78 : 99,509.52 = 33,047.60 : x
  2. Step 2: Convert to fraction form
    66,428.78/99,509.52 = 33,047.60/x
  3. Step 3: Cross multiply
    66,428.78x = 99,509.52 × 33,047.60
  4. Step 4: Simplify right side
    66,428.78x = 3,288,550,813.15
  5. Step 5: Solve for x
    x = 3,288,550,813.15/66,428.78
  6. Step 6: Final answer
    x = 49,504.91

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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.