Home / 77,279.67-115,960.55-30,532.95

Finding the Fourth Proportional to 77,279.67, 115,960.55 and 30,532.95

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Solution

The fourth proportional to 77,279.67, 115,960.55 and 30,532.95 is: 45,815.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,279.67 : 115,960.55 = 30,532.95 : x
  2. Step 2: Convert to fraction form
    77,279.67/115,960.55 = 30,532.95/x
  3. Step 3: Cross multiply
    77,279.67x = 115,960.55 × 30,532.95
  4. Step 4: Simplify right side
    77,279.67x = 3,540,617,522.46
  5. Step 5: Solve for x
    x = 3,540,617,522.46/77,279.67
  6. Step 6: Final answer
    x = 45,815.64

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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.