Home / 45,907.20-68,859.18-18,205.20

Finding the Fourth Proportional to 45,907.20, 68,859.18 and 18,205.20

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Solution

The fourth proportional to 45,907.20, 68,859.18 and 18,205.20 is: 27,307.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,907.20 : 68,859.18 = 18,205.20 : x
  2. Step 2: Convert to fraction form
    45,907.20/68,859.18 = 18,205.20/x
  3. Step 3: Cross multiply
    45,907.20x = 68,859.18 × 18,205.20
  4. Step 4: Simplify right side
    45,907.20x = 1,253,595,143.74
  5. Step 5: Solve for x
    x = 1,253,595,143.74/45,907.20
  6. Step 6: Final answer
    x = 27,307.16

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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.