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Finding the Fourth Proportional to 88,709, 122,418.58 and 48,965

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Solution

The fourth proportional to 88,709, 122,418.58 and 48,965 is: 67,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709 : 122,418.58 = 48,965 : x
  2. Step 2: Convert to fraction form
    88,709/122,418.58 = 48,965/x
  3. Step 3: Cross multiply
    88,709x = 122,418.58 × 48,965
  4. Step 4: Simplify right side
    88,709x = 5,994,225,769.70
  5. Step 5: Solve for x
    x = 5,994,225,769.70/88,709
  6. Step 6: Final answer
    x = 67,571.79

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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.