Home / 72,433.14-108,640.47-28,029.51

Finding the Fourth Proportional to 72,433.14, 108,640.47 and 28,029.51

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Solution

The fourth proportional to 72,433.14, 108,640.47 and 28,029.51 is: 42,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.14 : 108,640.47 = 28,029.51 : x
  2. Step 2: Convert to fraction form
    72,433.14/108,640.47 = 28,029.51/x
  3. Step 3: Cross multiply
    72,433.14x = 108,640.47 × 28,029.51
  4. Step 4: Simplify right side
    72,433.14x = 3,045,139,245.38
  5. Step 5: Solve for x
    x = 3,045,139,245.38/72,433.14
  6. Step 6: Final answer
    x = 42,040.69

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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.