Home / 86,669.92-129,629.53-51,046.30

Finding the Fourth Proportional to 86,669.92, 129,629.53 and 51,046.30

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Solution

The fourth proportional to 86,669.92, 129,629.53 and 51,046.30 is: 76,348.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,669.92 : 129,629.53 = 51,046.30 : x
  2. Step 2: Convert to fraction form
    86,669.92/129,629.53 = 51,046.30/x
  3. Step 3: Cross multiply
    86,669.92x = 129,629.53 × 51,046.30
  4. Step 4: Simplify right side
    86,669.92x = 6,617,107,877.24
  5. Step 5: Solve for x
    x = 6,617,107,877.24/86,669.92
  6. Step 6: Final answer
    x = 76,348.38

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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.