Home / 51,989.98-77,984.96-20,414.92

Finding the Fourth Proportional to 51,989.98, 77,984.96 and 20,414.92

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Solution

The fourth proportional to 51,989.98, 77,984.96 and 20,414.92 is: 30,622.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.98 : 77,984.96 = 20,414.92 : x
  2. Step 2: Convert to fraction form
    51,989.98/77,984.96 = 20,414.92/x
  3. Step 3: Cross multiply
    51,989.98x = 77,984.96 × 20,414.92
  4. Step 4: Simplify right side
    51,989.98x = 1,592,056,719.60
  5. Step 5: Solve for x
    x = 1,592,056,719.60/51,989.98
  6. Step 6: Final answer
    x = 30,622.38

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Similar ratio
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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.