Home / 47,119.19-70,626.11-20,434.37

Finding the Fourth Proportional to 47,119.19, 70,626.11 and 20,434.37

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Solution

The fourth proportional to 47,119.19, 70,626.11 and 20,434.37 is: 30,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,119.19 : 70,626.11 = 20,434.37 : x
  2. Step 2: Convert to fraction form
    47,119.19/70,626.11 = 20,434.37/x
  3. Step 3: Cross multiply
    47,119.19x = 70,626.11 × 20,434.37
  4. Step 4: Simplify right side
    47,119.19x = 1,443,199,608.10
  5. Step 5: Solve for x
    x = 1,443,199,608.10/47,119.19
  6. Step 6: Final answer
    x = 30,628.70

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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.