Home / 43,515.50-65,162.48-28,679.44

Finding the Fourth Proportional to 43,515.50, 65,162.48 and 28,679.44

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Solution

The fourth proportional to 43,515.50, 65,162.48 and 28,679.44 is: 42,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.50 : 65,162.48 = 28,679.44 : x
  2. Step 2: Convert to fraction form
    43,515.50/65,162.48 = 28,679.44/x
  3. Step 3: Cross multiply
    43,515.50x = 65,162.48 × 28,679.44
  4. Step 4: Simplify right side
    43,515.50x = 1,868,823,434.56
  5. Step 5: Solve for x
    x = 1,868,823,434.56/43,515.50
  6. Step 6: Final answer
    x = 42,946.15

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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.