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Finding the Fourth Proportional to 50,390, 75,586.64 and 15,330

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Solution

The fourth proportional to 50,390, 75,586.64 and 15,330 is: 22,995.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,390 : 75,586.64 = 15,330 : x
  2. Step 2: Convert to fraction form
    50,390/75,586.64 = 15,330/x
  3. Step 3: Cross multiply
    50,390x = 75,586.64 × 15,330
  4. Step 4: Simplify right side
    50,390x = 1,158,743,191.20
  5. Step 5: Solve for x
    x = 1,158,743,191.20/50,390
  6. Step 6: Final answer
    x = 22,995.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.