Home / 74,222.15-102,426.19-40,230.50

Finding the Fourth Proportional to 74,222.15, 102,426.19 and 40,230.50

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Solution

The fourth proportional to 74,222.15, 102,426.19 and 40,230.50 is: 55,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,222.15 : 102,426.19 = 40,230.50 : x
  2. Step 2: Convert to fraction form
    74,222.15/102,426.19 = 40,230.50/x
  3. Step 3: Cross multiply
    74,222.15x = 102,426.19 × 40,230.50
  4. Step 4: Simplify right side
    74,222.15x = 4,120,656,224.09
  5. Step 5: Solve for x
    x = 4,120,656,224.09/74,222.15
  6. Step 6: Final answer
    x = 55,517.88

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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.