Home / 77,758.56-107,280-43,760.16

Finding the Fourth Proportional to 77,758.56, 107,280 and 43,760.16

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Solution

The fourth proportional to 77,758.56, 107,280 and 43,760.16 is: 60,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,758.56 : 107,280 = 43,760.16 : x
  2. Step 2: Convert to fraction form
    77,758.56/107,280 = 43,760.16/x
  3. Step 3: Cross multiply
    77,758.56x = 107,280 × 43,760.16
  4. Step 4: Simplify right side
    77,758.56x = 4,694,589,964.80
  5. Step 5: Solve for x
    x = 4,694,589,964.80/77,758.56
  6. Step 6: Final answer
    x = 60,373.93

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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.