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Finding the Fourth Proportional to 92,908.88, 128,217.03 and 50,470.28

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Solution

The fourth proportional to 92,908.88, 128,217.03 and 50,470.28 is: 69,650.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,908.88 : 128,217.03 = 50,470.28 : x
  2. Step 2: Convert to fraction form
    92,908.88/128,217.03 = 50,470.28/x
  3. Step 3: Cross multiply
    92,908.88x = 128,217.03 × 50,470.28
  4. Step 4: Simplify right side
    92,908.88x = 6,471,149,404.87
  5. Step 5: Solve for x
    x = 6,471,149,404.87/92,908.88
  6. Step 6: Final answer
    x = 69,650.49

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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.