Home / 55,329.40-82,872.18-45,732.76

Finding the Fourth Proportional to 55,329.40, 82,872.18 and 45,732.76

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Solution

The fourth proportional to 55,329.40, 82,872.18 and 45,732.76 is: 68,498.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,329.40 : 82,872.18 = 45,732.76 : x
  2. Step 2: Convert to fraction form
    55,329.40/82,872.18 = 45,732.76/x
  3. Step 3: Cross multiply
    55,329.40x = 82,872.18 × 45,732.76
  4. Step 4: Simplify right side
    55,329.40x = 3,789,973,518.62
  5. Step 5: Solve for x
    x = 3,789,973,518.62/55,329.40
  6. Step 6: Final answer
    x = 68,498.37

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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.