Home / 47,780.96-71,669.80-12,242.60

Finding the Fourth Proportional to 47,780.96, 71,669.80 and 12,242.60

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Solution

The fourth proportional to 47,780.96, 71,669.80 and 12,242.60 is: 18,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,780.96 : 71,669.80 = 12,242.60 : x
  2. Step 2: Convert to fraction form
    47,780.96/71,669.80 = 12,242.60/x
  3. Step 3: Cross multiply
    47,780.96x = 71,669.80 × 12,242.60
  4. Step 4: Simplify right side
    47,780.96x = 877,424,693.48
  5. Step 5: Solve for x
    x = 877,424,693.48/47,780.96
  6. Step 6: Final answer
    x = 18,363.48

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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.