Home / 47,667.11-71,501.09-12,128.46

Finding the Fourth Proportional to 47,667.11, 71,501.09 and 12,128.46

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Solution

The fourth proportional to 47,667.11, 71,501.09 and 12,128.46 is: 18,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,667.11 : 71,501.09 = 12,128.46 : x
  2. Step 2: Convert to fraction form
    47,667.11/71,501.09 = 12,128.46/x
  3. Step 3: Cross multiply
    47,667.11x = 71,501.09 × 12,128.46
  4. Step 4: Simplify right side
    47,667.11x = 867,198,110.02
  5. Step 5: Solve for x
    x = 867,198,110.02/47,667.11
  6. Step 6: Final answer
    x = 18,192.80

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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.