Home / 47,850.96-71,776.44-12,790.80

Finding the Fourth Proportional to 47,850.96, 71,776.44 and 12,790.80

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Solution

The fourth proportional to 47,850.96, 71,776.44 and 12,790.80 is: 19,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,850.96 : 71,776.44 = 12,790.80 : x
  2. Step 2: Convert to fraction form
    47,850.96/71,776.44 = 12,790.80/x
  3. Step 3: Cross multiply
    47,850.96x = 71,776.44 × 12,790.80
  4. Step 4: Simplify right side
    47,850.96x = 918,078,088.75
  5. Step 5: Solve for x
    x = 918,078,088.75/47,850.96
  6. Step 6: Final answer
    x = 19,186.20

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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.