Home / 51,868.07-71,579.36-31,724.59

Finding the Fourth Proportional to 51,868.07, 71,579.36 and 31,724.59

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Solution

The fourth proportional to 51,868.07, 71,579.36 and 31,724.59 is: 43,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,868.07 : 71,579.36 = 31,724.59 : x
  2. Step 2: Convert to fraction form
    51,868.07/71,579.36 = 31,724.59/x
  3. Step 3: Cross multiply
    51,868.07x = 71,579.36 × 31,724.59
  4. Step 4: Simplify right side
    51,868.07x = 2,270,825,848.46
  5. Step 5: Solve for x
    x = 2,270,825,848.46/51,868.07
  6. Step 6: Final answer
    x = 43,780.80

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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.