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Finding the Fourth Proportional to 50,891.28, 70,232.70 and 30,747.93

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Solution

The fourth proportional to 50,891.28, 70,232.70 and 30,747.93 is: 42,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,891.28 : 70,232.70 = 30,747.93 : x
  2. Step 2: Convert to fraction form
    50,891.28/70,232.70 = 30,747.93/x
  3. Step 3: Cross multiply
    50,891.28x = 70,232.70 × 30,747.93
  4. Step 4: Simplify right side
    50,891.28x = 2,159,510,143.31
  5. Step 5: Solve for x
    x = 2,159,510,143.31/50,891.28
  6. Step 6: Final answer
    x = 42,433.80

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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.