Home / 73,165.78-109,727.02-31,045.33

Finding the Fourth Proportional to 73,165.78, 109,727.02 and 31,045.33

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Solution

The fourth proportional to 73,165.78, 109,727.02 and 31,045.33 is: 46,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,165.78 : 109,727.02 = 31,045.33 : x
  2. Step 2: Convert to fraction form
    73,165.78/109,727.02 = 31,045.33/x
  3. Step 3: Cross multiply
    73,165.78x = 109,727.02 × 31,045.33
  4. Step 4: Simplify right side
    73,165.78x = 3,406,511,545.82
  5. Step 5: Solve for x
    x = 3,406,511,545.82/73,165.78
  6. Step 6: Final answer
    x = 46,558.81

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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.