Home / 89,477.28-133,564.68-82,991.52

Finding the Fourth Proportional to 89,477.28, 133,564.68 and 82,991.52

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Solution

The fourth proportional to 89,477.28, 133,564.68 and 82,991.52 is: 123,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,477.28 : 133,564.68 = 82,991.52 : x
  2. Step 2: Convert to fraction form
    89,477.28/133,564.68 = 82,991.52/x
  3. Step 3: Cross multiply
    89,477.28x = 133,564.68 × 82,991.52
  4. Step 4: Simplify right side
    89,477.28x = 11,084,735,811.51
  5. Step 5: Solve for x
    x = 11,084,735,811.51/89,477.28
  6. Step 6: Final answer
    x = 123,883.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.