Home / 120,679.76-180,981.24-50,546

Finding the Fourth Proportional to 120,679.76, 180,981.24 and 50,546

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Solution

The fourth proportional to 120,679.76, 180,981.24 and 50,546 is: 75,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,679.76 : 180,981.24 = 50,546 : x
  2. Step 2: Convert to fraction form
    120,679.76/180,981.24 = 50,546/x
  3. Step 3: Cross multiply
    120,679.76x = 180,981.24 × 50,546
  4. Step 4: Simplify right side
    120,679.76x = 9,147,877,757.04
  5. Step 5: Solve for x
    x = 9,147,877,757.04/120,679.76
  6. Step 6: Final answer
    x = 75,802.92

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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.