Home / 77,081.32-115,573.98-35,474.92

Finding the Fourth Proportional to 77,081.32, 115,573.98 and 35,474.92

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Solution

The fourth proportional to 77,081.32, 115,573.98 and 35,474.92 is: 53,190.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081.32 : 115,573.98 = 35,474.92 : x
  2. Step 2: Convert to fraction form
    77,081.32/115,573.98 = 35,474.92/x
  3. Step 3: Cross multiply
    77,081.32x = 115,573.98 × 35,474.92
  4. Step 4: Simplify right side
    77,081.32x = 4,099,977,694.58
  5. Step 5: Solve for x
    x = 4,099,977,694.58/77,081.32
  6. Step 6: Final answer
    x = 53,190.29

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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.