Home / 66,310.20-99,497.70-31,243.80

Finding the Fourth Proportional to 66,310.20, 99,497.70 and 31,243.80

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Solution

The fourth proportional to 66,310.20, 99,497.70 and 31,243.80 is: 46,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.20 : 99,497.70 = 31,243.80 : x
  2. Step 2: Convert to fraction form
    66,310.20/99,497.70 = 31,243.80/x
  3. Step 3: Cross multiply
    66,310.20x = 99,497.70 × 31,243.80
  4. Step 4: Simplify right side
    66,310.20x = 3,108,686,239.26
  5. Step 5: Solve for x
    x = 3,108,686,239.26/66,310.20
  6. Step 6: Final answer
    x = 46,880.97

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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.