Home / 55,106.40-82,659.84-13,553.28

Finding the Fourth Proportional to 55,106.40, 82,659.84 and 13,553.28

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Solution

The fourth proportional to 55,106.40, 82,659.84 and 13,553.28 is: 20,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,106.40 : 82,659.84 = 13,553.28 : x
  2. Step 2: Convert to fraction form
    55,106.40/82,659.84 = 13,553.28/x
  3. Step 3: Cross multiply
    55,106.40x = 82,659.84 × 13,553.28
  4. Step 4: Simplify right side
    55,106.40x = 1,120,311,956.28
  5. Step 5: Solve for x
    x = 1,120,311,956.28/55,106.40
  6. Step 6: Final answer
    x = 20,329.98

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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.