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Finding the Fourth Proportional to 88,339.34, 121,911.54 and 50,620.88

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Solution

The fourth proportional to 88,339.34, 121,911.54 and 50,620.88 is: 69,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,339.34 : 121,911.54 = 50,620.88 : x
  2. Step 2: Convert to fraction form
    88,339.34/121,911.54 = 50,620.88/x
  3. Step 3: Cross multiply
    88,339.34x = 121,911.54 × 50,620.88
  4. Step 4: Simplify right side
    88,339.34x = 6,171,269,436.96
  5. Step 5: Solve for x
    x = 6,171,269,436.96/88,339.34
  6. Step 6: Final answer
    x = 69,858.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.