Home / 56,618.80-78,138.30-33,958.66

Finding the Fourth Proportional to 56,618.80, 78,138.30 and 33,958.66

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Solution

The fourth proportional to 56,618.80, 78,138.30 and 33,958.66 is: 46,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,618.80 : 78,138.30 = 33,958.66 : x
  2. Step 2: Convert to fraction form
    56,618.80/78,138.30 = 33,958.66/x
  3. Step 3: Cross multiply
    56,618.80x = 78,138.30 × 33,958.66
  4. Step 4: Simplify right side
    56,618.80x = 2,653,471,962.68
  5. Step 5: Solve for x
    x = 2,653,471,962.68/56,618.80
  6. Step 6: Final answer
    x = 46,865.56

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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.