Home / 47,239.20-65,134.80-28,369.44

Finding the Fourth Proportional to 47,239.20, 65,134.80 and 28,369.44

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Solution

The fourth proportional to 47,239.20, 65,134.80 and 28,369.44 is: 39,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,239.20 : 65,134.80 = 28,369.44 : x
  2. Step 2: Convert to fraction form
    47,239.20/65,134.80 = 28,369.44/x
  3. Step 3: Cross multiply
    47,239.20x = 65,134.80 × 28,369.44
  4. Step 4: Simplify right side
    47,239.20x = 1,847,837,800.51
  5. Step 5: Solve for x
    x = 1,847,837,800.51/47,239.20
  6. Step 6: Final answer
    x = 39,116.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.