Home / 86,992.57-120,044.06-51,175.66

Finding the Fourth Proportional to 86,992.57, 120,044.06 and 51,175.66

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Solution

The fourth proportional to 86,992.57, 120,044.06 and 51,175.66 is: 70,619.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,992.57 : 120,044.06 = 51,175.66 : x
  2. Step 2: Convert to fraction form
    86,992.57/120,044.06 = 51,175.66/x
  3. Step 3: Cross multiply
    86,992.57x = 120,044.06 × 51,175.66
  4. Step 4: Simplify right side
    86,992.57x = 6,143,333,999.58
  5. Step 5: Solve for x
    x = 6,143,333,999.58/86,992.57
  6. Step 6: Final answer
    x = 70,619.07

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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.