Home / 78,743.70-117,756.45-58,767.30

Finding the Fourth Proportional to 78,743.70, 117,756.45 and 58,767.30

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Solution

The fourth proportional to 78,743.70, 117,756.45 and 58,767.30 is: 87,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,743.70 : 117,756.45 = 58,767.30 : x
  2. Step 2: Convert to fraction form
    78,743.70/117,756.45 = 58,767.30/x
  3. Step 3: Cross multiply
    78,743.70x = 117,756.45 × 58,767.30
  4. Step 4: Simplify right side
    78,743.70x = 6,920,228,624.09
  5. Step 5: Solve for x
    x = 6,920,228,624.09/78,743.70
  6. Step 6: Final answer
    x = 87,882.95

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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.