Home / 72,433.02-108,640.27-28,029.39

Finding the Fourth Proportional to 72,433.02, 108,640.27 and 28,029.39

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Solution

The fourth proportional to 72,433.02, 108,640.27 and 28,029.39 is: 42,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.02 : 108,640.27 = 28,029.39 : x
  2. Step 2: Convert to fraction form
    72,433.02/108,640.27 = 28,029.39/x
  3. Step 3: Cross multiply
    72,433.02x = 108,640.27 × 28,029.39
  4. Step 4: Simplify right side
    72,433.02x = 3,045,120,497.54
  5. Step 5: Solve for x
    x = 3,045,120,497.54/72,433.02
  6. Step 6: Final answer
    x = 42,040.50

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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.