Home / 74,625.90-102,983.58-40,633.86

Finding the Fourth Proportional to 74,625.90, 102,983.58 and 40,633.86

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Solution

The fourth proportional to 74,625.90, 102,983.58 and 40,633.86 is: 56,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,625.90 : 102,983.58 = 40,633.86 : x
  2. Step 2: Convert to fraction form
    74,625.90/102,983.58 = 40,633.86/x
  3. Step 3: Cross multiply
    74,625.90x = 102,983.58 × 40,633.86
  4. Step 4: Simplify right side
    74,625.90x = 4,184,620,372.02
  5. Step 5: Solve for x
    x = 4,184,620,372.02/74,625.90
  6. Step 6: Final answer
    x = 56,074.64

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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.