Home / 41,405.72-57,176.42-30,776.90

Finding the Fourth Proportional to 41,405.72, 57,176.42 and 30,776.90

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Solution

The fourth proportional to 41,405.72, 57,176.42 and 30,776.90 is: 42,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,405.72 : 57,176.42 = 30,776.90 : x
  2. Step 2: Convert to fraction form
    41,405.72/57,176.42 = 30,776.90/x
  3. Step 3: Cross multiply
    41,405.72x = 57,176.42 × 30,776.90
  4. Step 4: Simplify right side
    41,405.72x = 1,759,712,520.93
  5. Step 5: Solve for x
    x = 1,759,712,520.93/41,405.72
  6. Step 6: Final answer
    x = 42,499.27

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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.