Home / 43,940.64-65,881.80-28,349.76

Finding the Fourth Proportional to 43,940.64, 65,881.80 and 28,349.76

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Solution

The fourth proportional to 43,940.64, 65,881.80 and 28,349.76 is: 42,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,940.64 : 65,881.80 = 28,349.76 : x
  2. Step 2: Convert to fraction form
    43,940.64/65,881.80 = 28,349.76/x
  3. Step 3: Cross multiply
    43,940.64x = 65,881.80 × 28,349.76
  4. Step 4: Simplify right side
    43,940.64x = 1,867,733,218.37
  5. Step 5: Solve for x
    x = 1,867,733,218.37/43,940.64
  6. Step 6: Final answer
    x = 42,505.83

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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.