Home / 74,190.32-102,382.68-40,656.32

Finding the Fourth Proportional to 74,190.32, 102,382.68 and 40,656.32

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Solution

The fourth proportional to 74,190.32, 102,382.68 and 40,656.32 is: 56,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,190.32 : 102,382.68 = 40,656.32 : x
  2. Step 2: Convert to fraction form
    74,190.32/102,382.68 = 40,656.32/x
  3. Step 3: Cross multiply
    74,190.32x = 102,382.68 × 40,656.32
  4. Step 4: Simplify right side
    74,190.32x = 4,162,503,000.54
  5. Step 5: Solve for x
    x = 4,162,503,000.54/74,190.32
  6. Step 6: Final answer
    x = 56,105.74

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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.