Home / 43,639.85-65,461.20-12,052.28

Finding the Fourth Proportional to 43,639.85, 65,461.20 and 12,052.28

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Solution

The fourth proportional to 43,639.85, 65,461.20 and 12,052.28 is: 18,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,639.85 : 65,461.20 = 12,052.28 : x
  2. Step 2: Convert to fraction form
    43,639.85/65,461.20 = 12,052.28/x
  3. Step 3: Cross multiply
    43,639.85x = 65,461.20 × 12,052.28
  4. Step 4: Simplify right side
    43,639.85x = 788,956,711.54
  5. Step 5: Solve for x
    x = 788,956,711.54/43,639.85
  6. Step 6: Final answer
    x = 18,078.81

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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.