Home / 74,229.66-102,438.18-40,238.82

Finding the Fourth Proportional to 74,229.66, 102,438.18 and 40,238.82

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Solution

The fourth proportional to 74,229.66, 102,438.18 and 40,238.82 is: 55,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,229.66 : 102,438.18 = 40,238.82 : x
  2. Step 2: Convert to fraction form
    74,229.66/102,438.18 = 40,238.82/x
  3. Step 3: Cross multiply
    74,229.66x = 102,438.18 × 40,238.82
  4. Step 4: Simplify right side
    74,229.66x = 4,121,991,486.15
  5. Step 5: Solve for x
    x = 4,121,991,486.15/74,229.66
  6. Step 6: Final answer
    x = 55,530.25

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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.