Home / 40,260.45-55,611.71-30,641.90

Finding the Fourth Proportional to 40,260.45, 55,611.71 and 30,641.90

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Solution

The fourth proportional to 40,260.45, 55,611.71 and 30,641.90 is: 42,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,260.45 : 55,611.71 = 30,641.90 : x
  2. Step 2: Convert to fraction form
    40,260.45/55,611.71 = 30,641.90/x
  3. Step 3: Cross multiply
    40,260.45x = 55,611.71 × 30,641.90
  4. Step 4: Simplify right side
    40,260.45x = 1,704,048,025.38
  5. Step 5: Solve for x
    x = 1,704,048,025.38/40,260.45
  6. Step 6: Final answer
    x = 42,325.61

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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.