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Finding the Fourth Proportional to 51,052.69, 70,454.28 and 30,913.30

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Solution

The fourth proportional to 51,052.69, 70,454.28 and 30,913.30 is: 42,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,052.69 : 70,454.28 = 30,913.30 : x
  2. Step 2: Convert to fraction form
    51,052.69/70,454.28 = 30,913.30/x
  3. Step 3: Cross multiply
    51,052.69x = 70,454.28 × 30,913.30
  4. Step 4: Simplify right side
    51,052.69x = 2,177,974,293.92
  5. Step 5: Solve for x
    x = 2,177,974,293.92/51,052.69
  6. Step 6: Final answer
    x = 42,661.30

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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.