Home / 77,418.52-115,834.28-45,845.53

Finding the Fourth Proportional to 77,418.52, 115,834.28 and 45,845.53

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Solution

The fourth proportional to 77,418.52, 115,834.28 and 45,845.53 is: 68,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,418.52 : 115,834.28 = 45,845.53 : x
  2. Step 2: Convert to fraction form
    77,418.52/115,834.28 = 45,845.53/x
  3. Step 3: Cross multiply
    77,418.52x = 115,834.28 × 45,845.53
  4. Step 4: Simplify right side
    77,418.52x = 5,310,483,439.96
  5. Step 5: Solve for x
    x = 5,310,483,439.96/77,418.52
  6. Step 6: Final answer
    x = 68,594.49

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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.