Home / 77,391.20-116,087-32,989.64

Finding the Fourth Proportional to 77,391.20, 116,087 and 32,989.64

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Solution

The fourth proportional to 77,391.20, 116,087 and 32,989.64 is: 49,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,391.20 : 116,087 = 32,989.64 : x
  2. Step 2: Convert to fraction form
    77,391.20/116,087 = 32,989.64/x
  3. Step 3: Cross multiply
    77,391.20x = 116,087 × 32,989.64
  4. Step 4: Simplify right side
    77,391.20x = 3,829,668,338.68
  5. Step 5: Solve for x
    x = 3,829,668,338.68/77,391.20
  6. Step 6: Final answer
    x = 49,484.55

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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.