Home / 50,128.13-69,176.81-29,985.86

Finding the Fourth Proportional to 50,128.13, 69,176.81 and 29,985.86

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Solution

The fourth proportional to 50,128.13, 69,176.81 and 29,985.86 is: 41,380.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,128.13 : 69,176.81 = 29,985.86 : x
  2. Step 2: Convert to fraction form
    50,128.13/69,176.81 = 29,985.86/x
  3. Step 3: Cross multiply
    50,128.13x = 69,176.81 × 29,985.86
  4. Step 4: Simplify right side
    50,128.13x = 2,074,325,868.99
  5. Step 5: Solve for x
    x = 2,074,325,868.99/50,128.13
  6. Step 6: Final answer
    x = 41,380.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.