Home / 74,589.12-102,935.40-42,764.04

Finding the Fourth Proportional to 74,589.12, 102,935.40 and 42,764.04

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Solution

The fourth proportional to 74,589.12, 102,935.40 and 42,764.04 is: 59,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,589.12 : 102,935.40 = 42,764.04 : x
  2. Step 2: Convert to fraction form
    74,589.12/102,935.40 = 42,764.04/x
  3. Step 3: Cross multiply
    74,589.12x = 102,935.40 × 42,764.04
  4. Step 4: Simplify right side
    74,589.12x = 4,401,933,563.02
  5. Step 5: Solve for x
    x = 4,401,933,563.02/74,589.12
  6. Step 6: Final answer
    x = 59,015.76

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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.