Home / 89,654.40-123,739.20-51,949.44

Finding the Fourth Proportional to 89,654.40, 123,739.20 and 51,949.44

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Solution

The fourth proportional to 89,654.40, 123,739.20 and 51,949.44 is: 71,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,654.40 : 123,739.20 = 51,949.44 : x
  2. Step 2: Convert to fraction form
    89,654.40/123,739.20 = 51,949.44/x
  3. Step 3: Cross multiply
    89,654.40x = 123,739.20 × 51,949.44
  4. Step 4: Simplify right side
    89,654.40x = 6,428,182,146.05
  5. Step 5: Solve for x
    x = 6,428,182,146.05/89,654.40
  6. Step 6: Final answer
    x = 71,699.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.