Home / 87,435.24-120,654.42-51,623.40

Finding the Fourth Proportional to 87,435.24, 120,654.42 and 51,623.40

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Solution

The fourth proportional to 87,435.24, 120,654.42 and 51,623.40 is: 71,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,435.24 : 120,654.42 = 51,623.40 : x
  2. Step 2: Convert to fraction form
    87,435.24/120,654.42 = 51,623.40/x
  3. Step 3: Cross multiply
    87,435.24x = 120,654.42 × 51,623.40
  4. Step 4: Simplify right side
    87,435.24x = 6,228,591,385.43
  5. Step 5: Solve for x
    x = 6,228,591,385.43/87,435.24
  6. Step 6: Final answer
    x = 71,236.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.