Home / 76,942.38-115,109.91-58,276.20

Finding the Fourth Proportional to 76,942.38, 115,109.91 and 58,276.20

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Solution

The fourth proportional to 76,942.38, 115,109.91 and 58,276.20 is: 87,184.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,942.38 : 115,109.91 = 58,276.20 : x
  2. Step 2: Convert to fraction form
    76,942.38/115,109.91 = 58,276.20/x
  3. Step 3: Cross multiply
    76,942.38x = 115,109.91 × 58,276.20
  4. Step 4: Simplify right side
    76,942.38x = 6,708,168,137.14
  5. Step 5: Solve for x
    x = 6,708,168,137.14/76,942.38
  6. Step 6: Final answer
    x = 87,184.31

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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.