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Finding the Fourth Proportional to 55,951.88, 77,116.37 and 40,819.65

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Solution

The fourth proportional to 55,951.88, 77,116.37 and 40,819.65 is: 56,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,951.88 : 77,116.37 = 40,819.65 : x
  2. Step 2: Convert to fraction form
    55,951.88/77,116.37 = 40,819.65/x
  3. Step 3: Cross multiply
    55,951.88x = 77,116.37 × 40,819.65
  4. Step 4: Simplify right side
    55,951.88x = 3,147,863,028.57
  5. Step 5: Solve for x
    x = 3,147,863,028.57/55,951.88
  6. Step 6: Final answer
    x = 56,260.19

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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.