Home / 74,051.12-102,190.44-40,517.12

Finding the Fourth Proportional to 74,051.12, 102,190.44 and 40,517.12

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Solution

The fourth proportional to 74,051.12, 102,190.44 and 40,517.12 is: 55,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,051.12 : 102,190.44 = 40,517.12 : x
  2. Step 2: Convert to fraction form
    74,051.12/102,190.44 = 40,517.12/x
  3. Step 3: Cross multiply
    74,051.12x = 102,190.44 × 40,517.12
  4. Step 4: Simplify right side
    74,051.12x = 4,140,462,320.33
  5. Step 5: Solve for x
    x = 4,140,462,320.33/74,051.12
  6. Step 6: Final answer
    x = 55,913.57

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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.