Home / 82,679.13-124,018.97-20,349.63

Finding the Fourth Proportional to 82,679.13, 124,018.97 and 20,349.63

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Solution

The fourth proportional to 82,679.13, 124,018.97 and 20,349.63 is: 30,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,679.13 : 124,018.97 = 20,349.63 : x
  2. Step 2: Convert to fraction form
    82,679.13/124,018.97 = 20,349.63/x
  3. Step 3: Cross multiply
    82,679.13x = 124,018.97 × 20,349.63
  4. Step 4: Simplify right side
    82,679.13x = 2,523,740,050.73
  5. Step 5: Solve for x
    x = 2,523,740,050.73/82,679.13
  6. Step 6: Final answer
    x = 30,524.51

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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.