Home / 80,953.05-121,439.76-43,461.60

Finding the Fourth Proportional to 80,953.05, 121,439.76 and 43,461.60

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Solution

The fourth proportional to 80,953.05, 121,439.76 and 43,461.60 is: 65,197.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,953.05 : 121,439.76 = 43,461.60 : x
  2. Step 2: Convert to fraction form
    80,953.05/121,439.76 = 43,461.60/x
  3. Step 3: Cross multiply
    80,953.05x = 121,439.76 × 43,461.60
  4. Step 4: Simplify right side
    80,953.05x = 5,277,965,654.84
  5. Step 5: Solve for x
    x = 5,277,965,654.84/80,953.05
  6. Step 6: Final answer
    x = 65,197.86

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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.