Home / 55,420.20-76,400.82-34,185.24

Finding the Fourth Proportional to 55,420.20, 76,400.82 and 34,185.24

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Solution

The fourth proportional to 55,420.20, 76,400.82 and 34,185.24 is: 47,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,420.20 : 76,400.82 = 34,185.24 : x
  2. Step 2: Convert to fraction form
    55,420.20/76,400.82 = 34,185.24/x
  3. Step 3: Cross multiply
    55,420.20x = 76,400.82 × 34,185.24
  4. Step 4: Simplify right side
    55,420.20x = 2,611,780,367.90
  5. Step 5: Solve for x
    x = 2,611,780,367.90/55,420.20
  6. Step 6: Final answer
    x = 47,126.87

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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.