Home / 36,072.76-54,109.50-12,699.40

Finding the Fourth Proportional to 36,072.76, 54,109.50 and 12,699.40

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Solution

The fourth proportional to 36,072.76, 54,109.50 and 12,699.40 is: 19,049.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,072.76 : 54,109.50 = 12,699.40 : x
  2. Step 2: Convert to fraction form
    36,072.76/54,109.50 = 12,699.40/x
  3. Step 3: Cross multiply
    36,072.76x = 54,109.50 × 12,699.40
  4. Step 4: Simplify right side
    36,072.76x = 687,158,184.30
  5. Step 5: Solve for x
    x = 687,158,184.30/36,072.76
  6. Step 6: Final answer
    x = 19,049.23

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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.