Home / 80,021.10-119,922.30-53,291.10

Finding the Fourth Proportional to 80,021.10, 119,922.30 and 53,291.10

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Solution

The fourth proportional to 80,021.10, 119,922.30 and 53,291.10 is: 79,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,021.10 : 119,922.30 = 53,291.10 : x
  2. Step 2: Convert to fraction form
    80,021.10/119,922.30 = 53,291.10/x
  3. Step 3: Cross multiply
    80,021.10x = 119,922.30 × 53,291.10
  4. Step 4: Simplify right side
    80,021.10x = 6,390,791,281.53
  5. Step 5: Solve for x
    x = 6,390,791,281.53/80,021.10
  6. Step 6: Final answer
    x = 79,863.83

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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.