Home / 45,072.54-67,616.10-18,779.94

Finding the Fourth Proportional to 45,072.54, 67,616.10 and 18,779.94

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Solution

The fourth proportional to 45,072.54, 67,616.10 and 18,779.94 is: 28,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,072.54 : 67,616.10 = 18,779.94 : x
  2. Step 2: Convert to fraction form
    45,072.54/67,616.10 = 18,779.94/x
  3. Step 3: Cross multiply
    45,072.54x = 67,616.10 × 18,779.94
  4. Step 4: Simplify right side
    45,072.54x = 1,269,826,301.03
  5. Step 5: Solve for x
    x = 1,269,826,301.03/45,072.54
  6. Step 6: Final answer
    x = 28,172.95

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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.