Home / 92,434.30-138,651.45-30,104.80

Finding the Fourth Proportional to 92,434.30, 138,651.45 and 30,104.80

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Solution

The fourth proportional to 92,434.30, 138,651.45 and 30,104.80 is: 45,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,434.30 : 138,651.45 = 30,104.80 : x
  2. Step 2: Convert to fraction form
    92,434.30/138,651.45 = 30,104.80/x
  3. Step 3: Cross multiply
    92,434.30x = 138,651.45 × 30,104.80
  4. Step 4: Simplify right side
    92,434.30x = 4,174,073,712.44
  5. Step 5: Solve for x
    x = 4,174,073,712.44/92,434.30
  6. Step 6: Final answer
    x = 45,157.20

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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.