Home / 47,705.70-71,594.10-18,181.20

Finding the Fourth Proportional to 47,705.70, 71,594.10 and 18,181.20

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Solution

The fourth proportional to 47,705.70, 71,594.10 and 18,181.20 is: 27,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,705.70 : 71,594.10 = 18,181.20 : x
  2. Step 2: Convert to fraction form
    47,705.70/71,594.10 = 18,181.20/x
  3. Step 3: Cross multiply
    47,705.70x = 71,594.10 × 18,181.20
  4. Step 4: Simplify right side
    47,705.70x = 1,301,666,650.92
  5. Step 5: Solve for x
    x = 1,301,666,650.92/47,705.70
  6. Step 6: Final answer
    x = 27,285.35

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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.