Home / 51,051.33-70,452.33-30,911.88

Finding the Fourth Proportional to 51,051.33, 70,452.33 and 30,911.88

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Solution

The fourth proportional to 51,051.33, 70,452.33 and 30,911.88 is: 42,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,051.33 : 70,452.33 = 30,911.88 : x
  2. Step 2: Convert to fraction form
    51,051.33/70,452.33 = 30,911.88/x
  3. Step 3: Cross multiply
    51,051.33x = 70,452.33 × 30,911.88
  4. Step 4: Simplify right side
    51,051.33x = 2,177,813,970.68
  5. Step 5: Solve for x
    x = 2,177,813,970.68/51,051.33
  6. Step 6: Final answer
    x = 42,659.30

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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.