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Finding the Fourth Proportional to 92,651.88, 138,982.68 and 29,478.90

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Solution

The fourth proportional to 92,651.88, 138,982.68 and 29,478.90 is: 44,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,651.88 : 138,982.68 = 29,478.90 : x
  2. Step 2: Convert to fraction form
    92,651.88/138,982.68 = 29,478.90/x
  3. Step 3: Cross multiply
    92,651.88x = 138,982.68 × 29,478.90
  4. Step 4: Simplify right side
    92,651.88x = 4,097,056,525.45
  5. Step 5: Solve for x
    x = 4,097,056,525.45/92,651.88
  6. Step 6: Final answer
    x = 44,219.90

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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.