Home / 55,337.45-82,956.86-20,268.90

Finding the Fourth Proportional to 55,337.45, 82,956.86 and 20,268.90

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Solution

The fourth proportional to 55,337.45, 82,956.86 and 20,268.90 is: 30,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,337.45 : 82,956.86 = 20,268.90 : x
  2. Step 2: Convert to fraction form
    55,337.45/82,956.86 = 20,268.90/x
  3. Step 3: Cross multiply
    55,337.45x = 82,956.86 × 20,268.90
  4. Step 4: Simplify right side
    55,337.45x = 1,681,444,299.65
  5. Step 5: Solve for x
    x = 1,681,444,299.65/55,337.45
  6. Step 6: Final answer
    x = 30,385.29

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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.