Home / 77,102.75-106,431.15-50,251.79

Finding the Fourth Proportional to 77,102.75, 106,431.15 and 50,251.79

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Solution

The fourth proportional to 77,102.75, 106,431.15 and 50,251.79 is: 69,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,102.75 : 106,431.15 = 50,251.79 : x
  2. Step 2: Convert to fraction form
    77,102.75/106,431.15 = 50,251.79/x
  3. Step 3: Cross multiply
    77,102.75x = 106,431.15 × 50,251.79
  4. Step 4: Simplify right side
    77,102.75x = 5,348,355,267.10
  5. Step 5: Solve for x
    x = 5,348,355,267.10/77,102.75
  6. Step 6: Final answer
    x = 69,366.60

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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.