Home / 89,258.40-133,721.92-63,905.60

Finding the Fourth Proportional to 89,258.40, 133,721.92 and 63,905.60

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Solution

The fourth proportional to 89,258.40, 133,721.92 and 63,905.60 is: 95,739.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,258.40 : 133,721.92 = 63,905.60 : x
  2. Step 2: Convert to fraction form
    89,258.40/133,721.92 = 63,905.60/x
  3. Step 3: Cross multiply
    89,258.40x = 133,721.92 × 63,905.60
  4. Step 4: Simplify right side
    89,258.40x = 8,545,579,530.75
  5. Step 5: Solve for x
    x = 8,545,579,530.75/89,258.40
  6. Step 6: Final answer
    x = 95,739.78

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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.