Home / 72,433.26-108,587.07-28,029.45

Finding the Fourth Proportional to 72,433.26, 108,587.07 and 28,029.45

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Solution

The fourth proportional to 72,433.26, 108,587.07 and 28,029.45 is: 42,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.26 : 108,587.07 = 28,029.45 : x
  2. Step 2: Convert to fraction form
    72,433.26/108,587.07 = 28,029.45/x
  3. Step 3: Cross multiply
    72,433.26x = 108,587.07 × 28,029.45
  4. Step 4: Simplify right side
    72,433.26x = 3,043,635,849.21
  5. Step 5: Solve for x
    x = 3,043,635,849.21/72,433.26
  6. Step 6: Final answer
    x = 42,019.87

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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.