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Finding the Fourth Proportional to 51,353.66, 70,868.52 and 30,133.28

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Solution

The fourth proportional to 51,353.66, 70,868.52 and 30,133.28 is: 41,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,353.66 : 70,868.52 = 30,133.28 : x
  2. Step 2: Convert to fraction form
    51,353.66/70,868.52 = 30,133.28/x
  3. Step 3: Cross multiply
    51,353.66x = 70,868.52 × 30,133.28
  4. Step 4: Simplify right side
    51,353.66x = 2,135,500,956.35
  5. Step 5: Solve for x
    x = 2,135,500,956.35/51,353.66
  6. Step 6: Final answer
    x = 41,584.20

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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.