Home / 73,163.57-109,670.02-28,772.33

Finding the Fourth Proportional to 73,163.57, 109,670.02 and 28,772.33

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Solution

The fourth proportional to 73,163.57, 109,670.02 and 28,772.33 is: 43,128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,163.57 : 109,670.02 = 28,772.33 : x
  2. Step 2: Convert to fraction form
    73,163.57/109,670.02 = 28,772.33/x
  3. Step 3: Cross multiply
    73,163.57x = 109,670.02 × 28,772.33
  4. Step 4: Simplify right side
    73,163.57x = 3,155,461,386.27
  5. Step 5: Solve for x
    x = 3,155,461,386.27/73,163.57
  6. Step 6: Final answer
    x = 43,128.86

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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.