Home / 82,958.40-124,423.20-30,340.80

Finding the Fourth Proportional to 82,958.40, 124,423.20 and 30,340.80

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Solution

The fourth proportional to 82,958.40, 124,423.20 and 30,340.80 is: 45,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,958.40 : 124,423.20 = 30,340.80 : x
  2. Step 2: Convert to fraction form
    82,958.40/124,423.20 = 30,340.80/x
  3. Step 3: Cross multiply
    82,958.40x = 124,423.20 × 30,340.80
  4. Step 4: Simplify right side
    82,958.40x = 3,775,099,426.56
  5. Step 5: Solve for x
    x = 3,775,099,426.56/82,958.40
  6. Step 6: Final answer
    x = 45,505.93

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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.