Home / 76,553.28-114,830.82-20,393.10

Finding the Fourth Proportional to 76,553.28, 114,830.82 and 20,393.10

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Solution

The fourth proportional to 76,553.28, 114,830.82 and 20,393.10 is: 30,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,553.28 : 114,830.82 = 20,393.10 : x
  2. Step 2: Convert to fraction form
    76,553.28/114,830.82 = 20,393.10/x
  3. Step 3: Cross multiply
    76,553.28x = 114,830.82 × 20,393.10
  4. Step 4: Simplify right side
    76,553.28x = 2,341,756,395.34
  5. Step 5: Solve for x
    x = 2,341,756,395.34/76,553.28
  6. Step 6: Final answer
    x = 30,589.89

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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.