Home / 82,835.29-124,252.94-20,505.79

Finding the Fourth Proportional to 82,835.29, 124,252.94 and 20,505.79

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Solution

The fourth proportional to 82,835.29, 124,252.94 and 20,505.79 is: 30,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,835.29 : 124,252.94 = 20,505.79 : x
  2. Step 2: Convert to fraction form
    82,835.29/124,252.94 = 20,505.79/x
  3. Step 3: Cross multiply
    82,835.29x = 124,252.94 × 20,505.79
  4. Step 4: Simplify right side
    82,835.29x = 2,547,903,970.73
  5. Step 5: Solve for x
    x = 2,547,903,970.73/82,835.29
  6. Step 6: Final answer
    x = 30,758.68

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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.