Home / 82,850.42-124,275.64-20,520.92

Finding the Fourth Proportional to 82,850.42, 124,275.64 and 20,520.92

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Solution

The fourth proportional to 82,850.42, 124,275.64 and 20,520.92 is: 30,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,850.42 : 124,275.64 = 20,520.92 : x
  2. Step 2: Convert to fraction form
    82,850.42/124,275.64 = 20,520.92/x
  3. Step 3: Cross multiply
    82,850.42x = 124,275.64 × 20,520.92
  4. Step 4: Simplify right side
    82,850.42x = 2,550,250,466.39
  5. Step 5: Solve for x
    x = 2,550,250,466.39/82,850.42
  6. Step 6: Final answer
    x = 30,781.38

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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.