Home / 67,075.98-100,629.54-19,689.18

Finding the Fourth Proportional to 67,075.98, 100,629.54 and 19,689.18

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Solution

The fourth proportional to 67,075.98, 100,629.54 and 19,689.18 is: 29,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,075.98 : 100,629.54 = 19,689.18 : x
  2. Step 2: Convert to fraction form
    67,075.98/100,629.54 = 19,689.18/x
  3. Step 3: Cross multiply
    67,075.98x = 100,629.54 × 19,689.18
  4. Step 4: Simplify right side
    67,075.98x = 1,981,313,126.38
  5. Step 5: Solve for x
    x = 1,981,313,126.38/67,075.98
  6. Step 6: Final answer
    x = 29,538.34

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1.5x scale

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.