Home / 80,731.81-121,112.70-24,576.94

Finding the Fourth Proportional to 80,731.81, 121,112.70 and 24,576.94

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Solution

The fourth proportional to 80,731.81, 121,112.70 and 24,576.94 is: 36,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,731.81 : 121,112.70 = 24,576.94 : x
  2. Step 2: Convert to fraction form
    80,731.81/121,112.70 = 24,576.94/x
  3. Step 3: Cross multiply
    80,731.81x = 121,112.70 × 24,576.94
  4. Step 4: Simplify right side
    80,731.81x = 2,976,579,561.14
  5. Step 5: Solve for x
    x = 2,976,579,561.14/80,731.81
  6. Step 6: Final answer
    x = 36,869.97

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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.