Home / 90,646.50-135,872.55-43,796.10

Finding the Fourth Proportional to 90,646.50, 135,872.55 and 43,796.10

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Solution

The fourth proportional to 90,646.50, 135,872.55 and 43,796.10 is: 65,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,646.50 : 135,872.55 = 43,796.10 : x
  2. Step 2: Convert to fraction form
    90,646.50/135,872.55 = 43,796.10/x
  3. Step 3: Cross multiply
    90,646.50x = 135,872.55 × 43,796.10
  4. Step 4: Simplify right side
    90,646.50x = 5,950,687,787.06
  5. Step 5: Solve for x
    x = 5,950,687,787.06/90,646.50
  6. Step 6: Final answer
    x = 65,647.19

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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.