Home / 82,113.65-113,334.44-51,879.74

Finding the Fourth Proportional to 82,113.65, 113,334.44 and 51,879.74

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Solution

The fourth proportional to 82,113.65, 113,334.44 and 51,879.74 is: 71,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,113.65 : 113,334.44 = 51,879.74 : x
  2. Step 2: Convert to fraction form
    82,113.65/113,334.44 = 51,879.74/x
  3. Step 3: Cross multiply
    82,113.65x = 113,334.44 × 51,879.74
  4. Step 4: Simplify right side
    82,113.65x = 5,879,761,383.50
  5. Step 5: Solve for x
    x = 5,879,761,383.50/82,113.65
  6. Step 6: Final answer
    x = 71,605.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.