Home / 72,077.03-108,115.28-19,486.50

Finding the Fourth Proportional to 72,077.03, 108,115.28 and 19,486.50

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Solution

The fourth proportional to 72,077.03, 108,115.28 and 19,486.50 is: 29,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,077.03 : 108,115.28 = 19,486.50 : x
  2. Step 2: Convert to fraction form
    72,077.03/108,115.28 = 19,486.50/x
  3. Step 3: Cross multiply
    72,077.03x = 108,115.28 × 19,486.50
  4. Step 4: Simplify right side
    72,077.03x = 2,106,788,452.44
  5. Step 5: Solve for x
    x = 2,106,788,452.44/72,077.03
  6. Step 6: Final answer
    x = 29,229.68

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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.