Home / 69,075.45-103,613.13-19,168.11

Finding the Fourth Proportional to 69,075.45, 103,613.13 and 19,168.11

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Solution

The fourth proportional to 69,075.45, 103,613.13 and 19,168.11 is: 28,752.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,075.45 : 103,613.13 = 19,168.11 : x
  2. Step 2: Convert to fraction form
    69,075.45/103,613.13 = 19,168.11/x
  3. Step 3: Cross multiply
    69,075.45x = 103,613.13 × 19,168.11
  4. Step 4: Simplify right side
    69,075.45x = 1,986,067,873.28
  5. Step 5: Solve for x
    x = 1,986,067,873.28/69,075.45
  6. Step 6: Final answer
    x = 28,752.15

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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.