Home / 52,075.03-78,112.66-18,818.58

Finding the Fourth Proportional to 52,075.03, 78,112.66 and 18,818.58

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Solution

The fourth proportional to 52,075.03, 78,112.66 and 18,818.58 is: 28,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,075.03 : 78,112.66 = 18,818.58 : x
  2. Step 2: Convert to fraction form
    52,075.03/78,112.66 = 18,818.58/x
  3. Step 3: Cross multiply
    52,075.03x = 78,112.66 × 18,818.58
  4. Step 4: Simplify right side
    52,075.03x = 1,469,969,583.55
  5. Step 5: Solve for x
    x = 1,469,969,583.55/52,075.03
  6. Step 6: Final answer
    x = 28,227.91

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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.