Home / 75,985.30-114,010.75-40,917.97

Finding the Fourth Proportional to 75,985.30, 114,010.75 and 40,917.97

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Solution

The fourth proportional to 75,985.30, 114,010.75 and 40,917.97 is: 61,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,985.30 : 114,010.75 = 40,917.97 : x
  2. Step 2: Convert to fraction form
    75,985.30/114,010.75 = 40,917.97/x
  3. Step 3: Cross multiply
    75,985.30x = 114,010.75 × 40,917.97
  4. Step 4: Simplify right side
    75,985.30x = 4,665,087,878.12
  5. Step 5: Solve for x
    x = 4,665,087,878.12/75,985.30
  6. Step 6: Final answer
    x = 61,394.61

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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.