Home / 47,145.38-70,722.32-12,085.34

Finding the Fourth Proportional to 47,145.38, 70,722.32 and 12,085.34

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Solution

The fourth proportional to 47,145.38, 70,722.32 and 12,085.34 is: 18,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,145.38 : 70,722.32 = 12,085.34 : x
  2. Step 2: Convert to fraction form
    47,145.38/70,722.32 = 12,085.34/x
  3. Step 3: Cross multiply
    47,145.38x = 70,722.32 × 12,085.34
  4. Step 4: Simplify right side
    47,145.38x = 854,702,868.75
  5. Step 5: Solve for x
    x = 854,702,868.75/47,145.38
  6. Step 6: Final answer
    x = 18,129.09

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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.