Home / 51,109.02-76,658.12-13,672.86

Finding the Fourth Proportional to 51,109.02, 76,658.12 and 13,672.86

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Solution

The fourth proportional to 51,109.02, 76,658.12 and 13,672.86 is: 20,507.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.02 : 76,658.12 = 13,672.86 : x
  2. Step 2: Convert to fraction form
    51,109.02/76,658.12 = 13,672.86/x
  3. Step 3: Cross multiply
    51,109.02x = 76,658.12 × 13,672.86
  4. Step 4: Simplify right side
    51,109.02x = 1,048,135,742.62
  5. Step 5: Solve for x
    x = 1,048,135,742.62/51,109.02
  6. Step 6: Final answer
    x = 20,507.84

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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.