Home / 88,728.75-133,027.51-53,660.61

Finding the Fourth Proportional to 88,728.75, 133,027.51 and 53,660.61

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Solution

The fourth proportional to 88,728.75, 133,027.51 and 53,660.61 is: 80,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,728.75 : 133,027.51 = 53,660.61 : x
  2. Step 2: Convert to fraction form
    88,728.75/133,027.51 = 53,660.61/x
  3. Step 3: Cross multiply
    88,728.75x = 133,027.51 × 53,660.61
  4. Step 4: Simplify right side
    88,728.75x = 7,138,337,333.38
  5. Step 5: Solve for x
    x = 7,138,337,333.38/88,728.75
  6. Step 6: Final answer
    x = 80,451.23

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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.