Home / 66,700.27-100,043.01-16,780.35

Finding the Fourth Proportional to 66,700.27, 100,043.01 and 16,780.35

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Solution

The fourth proportional to 66,700.27, 100,043.01 and 16,780.35 is: 25,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,700.27 : 100,043.01 = 16,780.35 : x
  2. Step 2: Convert to fraction form
    66,700.27/100,043.01 = 16,780.35/x
  3. Step 3: Cross multiply
    66,700.27x = 100,043.01 × 16,780.35
  4. Step 4: Simplify right side
    66,700.27x = 1,678,756,722.85
  5. Step 5: Solve for x
    x = 1,678,756,722.85/66,700.27
  6. Step 6: Final answer
    x = 25,168.66

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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.