Home / 66,467.20-99,579.30-31,329.40

Finding the Fourth Proportional to 66,467.20, 99,579.30 and 31,329.40

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Solution

The fourth proportional to 66,467.20, 99,579.30 and 31,329.40 is: 46,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.20 : 99,579.30 = 31,329.40 : x
  2. Step 2: Convert to fraction form
    66,467.20/99,579.30 = 31,329.40/x
  3. Step 3: Cross multiply
    66,467.20x = 99,579.30 × 31,329.40
  4. Step 4: Simplify right side
    66,467.20x = 3,119,759,721.42
  5. Step 5: Solve for x
    x = 3,119,759,721.42/66,467.20
  6. Step 6: Final answer
    x = 46,936.83

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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.