Home / 47,742.10-71,636.37-19,277.89

Finding the Fourth Proportional to 47,742.10, 71,636.37 and 19,277.89

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Solution

The fourth proportional to 47,742.10, 71,636.37 and 19,277.89 is: 28,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,742.10 : 71,636.37 = 19,277.89 : x
  2. Step 2: Convert to fraction form
    47,742.10/71,636.37 = 19,277.89/x
  3. Step 3: Cross multiply
    47,742.10x = 71,636.37 × 19,277.89
  4. Step 4: Simplify right side
    47,742.10x = 1,380,998,060.86
  5. Step 5: Solve for x
    x = 1,380,998,060.86/47,742.10
  6. Step 6: Final answer
    x = 28,926.21

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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.