Home / 86,929.44-119,960.64-51,111.60

Finding the Fourth Proportional to 86,929.44, 119,960.64 and 51,111.60

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Solution

The fourth proportional to 86,929.44, 119,960.64 and 51,111.60 is: 70,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,929.44 : 119,960.64 = 51,111.60 : x
  2. Step 2: Convert to fraction form
    86,929.44/119,960.64 = 51,111.60/x
  3. Step 3: Cross multiply
    86,929.44x = 119,960.64 × 51,111.60
  4. Step 4: Simplify right side
    86,929.44x = 6,131,380,247.42
  5. Step 5: Solve for x
    x = 6,131,380,247.42/86,929.44
  6. Step 6: Final answer
    x = 70,532.84

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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.