Home / 86,992.95-120,044.58-51,176.04

Finding the Fourth Proportional to 86,992.95, 120,044.58 and 51,176.04

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Solution

The fourth proportional to 86,992.95, 120,044.58 and 51,176.04 is: 70,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,992.95 : 120,044.58 = 51,176.04 : x
  2. Step 2: Convert to fraction form
    86,992.95/120,044.58 = 51,176.04/x
  3. Step 3: Cross multiply
    86,992.95x = 120,044.58 × 51,176.04
  4. Step 4: Simplify right side
    86,992.95x = 6,143,405,627.64
  5. Step 5: Solve for x
    x = 6,143,405,627.64/86,992.95
  6. Step 6: Final answer
    x = 70,619.58

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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.