Home / 69,077.21-103,615.40-19,156.77

Finding the Fourth Proportional to 69,077.21, 103,615.40 and 19,156.77

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Solution

The fourth proportional to 69,077.21, 103,615.40 and 19,156.77 is: 28,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,077.21 : 103,615.40 = 19,156.77 : x
  2. Step 2: Convert to fraction form
    69,077.21/103,615.40 = 19,156.77/x
  3. Step 3: Cross multiply
    69,077.21x = 103,615.40 × 19,156.77
  4. Step 4: Simplify right side
    69,077.21x = 1,984,936,434.15
  5. Step 5: Solve for x
    x = 1,984,936,434.15/69,077.21
  6. Step 6: Final answer
    x = 28,735.04

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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.