Home / 67,212.66-100,818.99-20,465.53

Finding the Fourth Proportional to 67,212.66, 100,818.99 and 20,465.53

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Solution

The fourth proportional to 67,212.66, 100,818.99 and 20,465.53 is: 30,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,212.66 : 100,818.99 = 20,465.53 : x
  2. Step 2: Convert to fraction form
    67,212.66/100,818.99 = 20,465.53/x
  3. Step 3: Cross multiply
    67,212.66x = 100,818.99 × 20,465.53
  4. Step 4: Simplify right side
    67,212.66x = 2,063,314,113.69
  5. Step 5: Solve for x
    x = 2,063,314,113.69/67,212.66
  6. Step 6: Final answer
    x = 30,698.30

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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.