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Finding the Fourth Proportional to 89,880.40, 134,917.80 and 50,514.40

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Solution

The fourth proportional to 89,880.40, 134,917.80 and 50,514.40 is: 75,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,880.40 : 134,917.80 = 50,514.40 : x
  2. Step 2: Convert to fraction form
    89,880.40/134,917.80 = 50,514.40/x
  3. Step 3: Cross multiply
    89,880.40x = 134,917.80 × 50,514.40
  4. Step 4: Simplify right side
    89,880.40x = 6,815,291,716.32
  5. Step 5: Solve for x
    x = 6,815,291,716.32/89,880.40
  6. Step 6: Final answer
    x = 75,826.23

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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.