Home / 79,539.36-119,306.28-20,375.52

Finding the Fourth Proportional to 79,539.36, 119,306.28 and 20,375.52

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Solution

The fourth proportional to 79,539.36, 119,306.28 and 20,375.52 is: 30,562.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,539.36 : 119,306.28 = 20,375.52 : x
  2. Step 2: Convert to fraction form
    79,539.36/119,306.28 = 20,375.52/x
  3. Step 3: Cross multiply
    79,539.36x = 119,306.28 × 20,375.52
  4. Step 4: Simplify right side
    79,539.36x = 2,430,927,494.27
  5. Step 5: Solve for x
    x = 2,430,927,494.27/79,539.36
  6. Step 6: Final answer
    x = 30,562.57

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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.