Home / 55,278.45-82,901.27-20,209.91

Finding the Fourth Proportional to 55,278.45, 82,901.27 and 20,209.91

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Solution

The fourth proportional to 55,278.45, 82,901.27 and 20,209.91 is: 30,308.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.45 : 82,901.27 = 20,209.91 : x
  2. Step 2: Convert to fraction form
    55,278.45/82,901.27 = 20,209.91/x
  3. Step 3: Cross multiply
    55,278.45x = 82,901.27 × 20,209.91
  4. Step 4: Simplify right side
    55,278.45x = 1,675,426,841.60
  5. Step 5: Solve for x
    x = 1,675,426,841.60/55,278.45
  6. Step 6: Final answer
    x = 30,308.86

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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.