Home / 82,511.10-123,766.65-62,828.10

Finding the Fourth Proportional to 82,511.10, 123,766.65 and 62,828.10

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Solution

The fourth proportional to 82,511.10, 123,766.65 and 62,828.10 is: 94,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,511.10 : 123,766.65 = 62,828.10 : x
  2. Step 2: Convert to fraction form
    82,511.10/123,766.65 = 62,828.10/x
  3. Step 3: Cross multiply
    82,511.10x = 123,766.65 × 62,828.10
  4. Step 4: Simplify right side
    82,511.10x = 7,776,023,462.87
  5. Step 5: Solve for x
    x = 7,776,023,462.87/82,511.10
  6. Step 6: Final answer
    x = 94,242.15

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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.