Home / 45,205.22-67,813.94-18,903.78

Finding the Fourth Proportional to 45,205.22, 67,813.94 and 18,903.78

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Solution

The fourth proportional to 45,205.22, 67,813.94 and 18,903.78 is: 28,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,205.22 : 67,813.94 = 18,903.78 : x
  2. Step 2: Convert to fraction form
    45,205.22/67,813.94 = 18,903.78/x
  3. Step 3: Cross multiply
    45,205.22x = 67,813.94 × 18,903.78
  4. Step 4: Simplify right side
    45,205.22x = 1,281,939,849.95
  5. Step 5: Solve for x
    x = 1,281,939,849.95/45,205.22
  6. Step 6: Final answer
    x = 28,358.22

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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.