Home / 86,028.48-128,992.50-33,376.46

Finding the Fourth Proportional to 86,028.48, 128,992.50 and 33,376.46

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Solution

The fourth proportional to 86,028.48, 128,992.50 and 33,376.46 is: 50,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,028.48 : 128,992.50 = 33,376.46 : x
  2. Step 2: Convert to fraction form
    86,028.48/128,992.50 = 33,376.46/x
  3. Step 3: Cross multiply
    86,028.48x = 128,992.50 × 33,376.46
  4. Step 4: Simplify right side
    86,028.48x = 4,305,312,371.59
  5. Step 5: Solve for x
    x = 4,305,312,371.59/86,028.48
  6. Step 6: Final answer
    x = 50,045.20

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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.