Home / 73,085.54-109,628.13-28,681.23

Finding the Fourth Proportional to 73,085.54, 109,628.13 and 28,681.23

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Solution

The fourth proportional to 73,085.54, 109,628.13 and 28,681.23 is: 43,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,085.54 : 109,628.13 = 28,681.23 : x
  2. Step 2: Convert to fraction form
    73,085.54/109,628.13 = 28,681.23/x
  3. Step 3: Cross multiply
    73,085.54x = 109,628.13 × 28,681.23
  4. Step 4: Simplify right side
    73,085.54x = 3,144,270,129.66
  5. Step 5: Solve for x
    x = 3,144,270,129.66/73,085.54
  6. Step 6: Final answer
    x = 43,021.78

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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.