Home / 87,118.84-130,643.08-33,782.73

Finding the Fourth Proportional to 87,118.84, 130,643.08 and 33,782.73

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Solution

The fourth proportional to 87,118.84, 130,643.08 and 33,782.73 is: 50,660.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,118.84 : 130,643.08 = 33,782.73 : x
  2. Step 2: Convert to fraction form
    87,118.84/130,643.08 = 33,782.73/x
  3. Step 3: Cross multiply
    87,118.84x = 130,643.08 × 33,782.73
  4. Step 4: Simplify right side
    87,118.84x = 4,413,479,729.09
  5. Step 5: Solve for x
    x = 4,413,479,729.09/87,118.84
  6. Step 6: Final answer
    x = 50,660.45

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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.