Home / 54,135.12-74,720-43,337.82

Finding the Fourth Proportional to 54,135.12, 74,720 and 43,337.82

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Solution

The fourth proportional to 54,135.12, 74,720 and 43,337.82 is: 59,817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,135.12 : 74,720 = 43,337.82 : x
  2. Step 2: Convert to fraction form
    54,135.12/74,720 = 43,337.82/x
  3. Step 3: Cross multiply
    54,135.12x = 74,720 × 43,337.82
  4. Step 4: Simplify right side
    54,135.12x = 3,238,201,910.40
  5. Step 5: Solve for x
    x = 3,238,201,910.40/54,135.12
  6. Step 6: Final answer
    x = 59,817.03

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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.