Home / 47,462.20-71,193.30-12,405.40

Finding the Fourth Proportional to 47,462.20, 71,193.30 and 12,405.40

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Solution

The fourth proportional to 47,462.20, 71,193.30 and 12,405.40 is: 18,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,462.20 : 71,193.30 = 12,405.40 : x
  2. Step 2: Convert to fraction form
    47,462.20/71,193.30 = 12,405.40/x
  3. Step 3: Cross multiply
    47,462.20x = 71,193.30 × 12,405.40
  4. Step 4: Simplify right side
    47,462.20x = 883,181,363.82
  5. Step 5: Solve for x
    x = 883,181,363.82/47,462.20
  6. Step 6: Final answer
    x = 18,608.10

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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.