Home / 75,306.99-112,972.91-30,921.96

Finding the Fourth Proportional to 75,306.99, 112,972.91 and 30,921.96

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Solution

The fourth proportional to 75,306.99, 112,972.91 and 30,921.96 is: 46,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,306.99 : 112,972.91 = 30,921.96 : x
  2. Step 2: Convert to fraction form
    75,306.99/112,972.91 = 30,921.96/x
  3. Step 3: Cross multiply
    75,306.99x = 112,972.91 × 30,921.96
  4. Step 4: Simplify right side
    75,306.99x = 3,493,343,649.49
  5. Step 5: Solve for x
    x = 3,493,343,649.49/75,306.99
  6. Step 6: Final answer
    x = 46,388.04

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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.