Home / 82,077.43-123,112.04-28,752.90

Finding the Fourth Proportional to 82,077.43, 123,112.04 and 28,752.90

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Solution

The fourth proportional to 82,077.43, 123,112.04 and 28,752.90 is: 43,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,077.43 : 123,112.04 = 28,752.90 : x
  2. Step 2: Convert to fraction form
    82,077.43/123,112.04 = 28,752.90/x
  3. Step 3: Cross multiply
    82,077.43x = 123,112.04 × 28,752.90
  4. Step 4: Simplify right side
    82,077.43x = 3,539,828,037.04
  5. Step 5: Solve for x
    x = 3,539,828,037.04/82,077.43
  6. Step 6: Final answer
    x = 43,127.91

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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.