Home / 77,472.20-116,209.44-30,090.03

Finding the Fourth Proportional to 77,472.20, 116,209.44 and 30,090.03

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Solution

The fourth proportional to 77,472.20, 116,209.44 and 30,090.03 is: 45,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,472.20 : 116,209.44 = 30,090.03 : x
  2. Step 2: Convert to fraction form
    77,472.20/116,209.44 = 30,090.03/x
  3. Step 3: Cross multiply
    77,472.20x = 116,209.44 × 30,090.03
  4. Step 4: Simplify right side
    77,472.20x = 3,496,745,535.88
  5. Step 5: Solve for x
    x = 3,496,745,535.88/77,472.20
  6. Step 6: Final answer
    x = 45,135.49

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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.