Home / 82,958.06-124,437.02-20,628.56

Finding the Fourth Proportional to 82,958.06, 124,437.02 and 20,628.56

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Solution

The fourth proportional to 82,958.06, 124,437.02 and 20,628.56 is: 30,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,958.06 : 124,437.02 = 20,628.56 : x
  2. Step 2: Convert to fraction form
    82,958.06/124,437.02 = 20,628.56/x
  3. Step 3: Cross multiply
    82,958.06x = 124,437.02 × 20,628.56
  4. Step 4: Simplify right side
    82,958.06x = 2,566,955,807.96
  5. Step 5: Solve for x
    x = 2,566,955,807.96/82,958.06
  6. Step 6: Final answer
    x = 30,942.82

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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.