Home / 51,573.80-77,364.70-21,991.84

Finding the Fourth Proportional to 51,573.80, 77,364.70 and 21,991.84

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Solution

The fourth proportional to 51,573.80, 77,364.70 and 21,991.84 is: 32,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,573.80 : 77,364.70 = 21,991.84 : x
  2. Step 2: Convert to fraction form
    51,573.80/77,364.70 = 21,991.84/x
  3. Step 3: Cross multiply
    51,573.80x = 77,364.70 × 21,991.84
  4. Step 4: Simplify right side
    51,573.80x = 1,701,392,104.05
  5. Step 5: Solve for x
    x = 1,701,392,104.05/51,573.80
  6. Step 6: Final answer
    x = 32,989.47

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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.