Home / 52,075.20-78,112.92-18,818.76

Finding the Fourth Proportional to 52,075.20, 78,112.92 and 18,818.76

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Solution

The fourth proportional to 52,075.20, 78,112.92 and 18,818.76 is: 28,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,075.20 : 78,112.92 = 18,818.76 : x
  2. Step 2: Convert to fraction form
    52,075.20/78,112.92 = 18,818.76/x
  3. Step 3: Cross multiply
    52,075.20x = 78,112.92 × 18,818.76
  4. Step 4: Simplify right side
    52,075.20x = 1,469,987,919.40
  5. Step 5: Solve for x
    x = 1,469,987,919.40/52,075.20
  6. Step 6: Final answer
    x = 28,228.17

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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.