Home / 82,678.59-123,938.91-26,482.41

Finding the Fourth Proportional to 82,678.59, 123,938.91 and 26,482.41

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Solution

The fourth proportional to 82,678.59, 123,938.91 and 26,482.41 is: 39,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,678.59 : 123,938.91 = 26,482.41 : x
  2. Step 2: Convert to fraction form
    82,678.59/123,938.91 = 26,482.41/x
  3. Step 3: Cross multiply
    82,678.59x = 123,938.91 × 26,482.41
  4. Step 4: Simplify right side
    82,678.59x = 3,282,201,029.57
  5. Step 5: Solve for x
    x = 3,282,201,029.57/82,678.59
  6. Step 6: Final answer
    x = 39,698.32

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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.