Home / 77,081.48-115,619.58-32,679.64

Finding the Fourth Proportional to 77,081.48, 115,619.58 and 32,679.64

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Solution

The fourth proportional to 77,081.48, 115,619.58 and 32,679.64 is: 49,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081.48 : 115,619.58 = 32,679.64 : x
  2. Step 2: Convert to fraction form
    77,081.48/115,619.58 = 32,679.64/x
  3. Step 3: Cross multiply
    77,081.48x = 115,619.58 × 32,679.64
  4. Step 4: Simplify right side
    77,081.48x = 3,778,406,251.35
  5. Step 5: Solve for x
    x = 3,778,406,251.35/77,081.48
  6. Step 6: Final answer
    x = 49,018.34

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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.