Home / 47,945.98-71,909.25-12,885.94

Finding the Fourth Proportional to 47,945.98, 71,909.25 and 12,885.94

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Solution

The fourth proportional to 47,945.98, 71,909.25 and 12,885.94 is: 19,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,945.98 : 71,909.25 = 12,885.94 : x
  2. Step 2: Convert to fraction form
    47,945.98/71,909.25 = 12,885.94/x
  3. Step 3: Cross multiply
    47,945.98x = 71,909.25 × 12,885.94
  4. Step 4: Simplify right side
    47,945.98x = 926,618,280.95
  5. Step 5: Solve for x
    x = 926,618,280.95/47,945.98
  6. Step 6: Final answer
    x = 19,326.30

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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.