Home / 87,120.09-130,644.95-33,783.98

Finding the Fourth Proportional to 87,120.09, 130,644.95 and 33,783.98

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Solution

The fourth proportional to 87,120.09, 130,644.95 and 33,783.98 is: 50,662.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120.09 : 130,644.95 = 33,783.98 : x
  2. Step 2: Convert to fraction form
    87,120.09/130,644.95 = 33,783.98/x
  3. Step 3: Cross multiply
    87,120.09x = 130,644.95 × 33,783.98
  4. Step 4: Simplify right side
    87,120.09x = 4,413,706,377.90
  5. Step 5: Solve for x
    x = 4,413,706,377.90/87,120.09
  6. Step 6: Final answer
    x = 50,662.33

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1.5x scale

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.