Home / 47,470.20-71,199.12-12,412.56

Finding the Fourth Proportional to 47,470.20, 71,199.12 and 12,412.56

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Solution

The fourth proportional to 47,470.20, 71,199.12 and 12,412.56 is: 18,617.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,470.20 : 71,199.12 = 12,412.56 : x
  2. Step 2: Convert to fraction form
    47,470.20/71,199.12 = 12,412.56/x
  3. Step 3: Cross multiply
    47,470.20x = 71,199.12 × 12,412.56
  4. Step 4: Simplify right side
    47,470.20x = 883,763,348.95
  5. Step 5: Solve for x
    x = 883,763,348.95/47,470.20
  6. Step 6: Final answer
    x = 18,617.22

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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.