Home / 51,782.74-71,431.05-31,080.94

Finding the Fourth Proportional to 51,782.74, 71,431.05 and 31,080.94

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Solution

The fourth proportional to 51,782.74, 71,431.05 and 31,080.94 is: 42,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,782.74 : 71,431.05 = 31,080.94 : x
  2. Step 2: Convert to fraction form
    51,782.74/71,431.05 = 31,080.94/x
  3. Step 3: Cross multiply
    51,782.74x = 71,431.05 × 31,080.94
  4. Step 4: Simplify right side
    51,782.74x = 2,220,144,179.19
  5. Step 5: Solve for x
    x = 2,220,144,179.19/51,782.74
  6. Step 6: Final answer
    x = 42,874.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.