Home / 69,670.11-96,143.72-39,042.75

Finding the Fourth Proportional to 69,670.11, 96,143.72 and 39,042.75

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Solution

The fourth proportional to 69,670.11, 96,143.72 and 39,042.75 is: 53,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,670.11 : 96,143.72 = 39,042.75 : x
  2. Step 2: Convert to fraction form
    69,670.11/96,143.72 = 39,042.75/x
  3. Step 3: Cross multiply
    69,670.11x = 96,143.72 × 39,042.75
  4. Step 4: Simplify right side
    69,670.11x = 3,753,715,028.82
  5. Step 5: Solve for x
    x = 3,753,715,028.82/69,670.11
  6. Step 6: Final answer
    x = 53,878.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.