Home / 87,858.40-131,787.60-64,530.40

Finding the Fourth Proportional to 87,858.40, 131,787.60 and 64,530.40

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Solution

The fourth proportional to 87,858.40, 131,787.60 and 64,530.40 is: 96,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,858.40 : 131,787.60 = 64,530.40 : x
  2. Step 2: Convert to fraction form
    87,858.40/131,787.60 = 64,530.40/x
  3. Step 3: Cross multiply
    87,858.40x = 131,787.60 × 64,530.40
  4. Step 4: Simplify right side
    87,858.40x = 8,504,306,543.04
  5. Step 5: Solve for x
    x = 8,504,306,543.04/87,858.40
  6. Step 6: Final answer
    x = 96,795.60

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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.