Home / 66,795.07-100,203.50-31,722.88

Finding the Fourth Proportional to 66,795.07, 100,203.50 and 31,722.88

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Solution

The fourth proportional to 66,795.07, 100,203.50 and 31,722.88 is: 47,589.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,795.07 : 100,203.50 = 31,722.88 : x
  2. Step 2: Convert to fraction form
    66,795.07/100,203.50 = 31,722.88/x
  3. Step 3: Cross multiply
    66,795.07x = 100,203.50 × 31,722.88
  4. Step 4: Simplify right side
    66,795.07x = 3,178,743,447.47
  5. Step 5: Solve for x
    x = 3,178,743,447.47/66,795.07
  6. Step 6: Final answer
    x = 47,589.49

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1.5x scale

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.