Home / 35,989.41-49,639.64-31,200.78

Finding the Fourth Proportional to 35,989.41, 49,639.64 and 31,200.78

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Solution

The fourth proportional to 35,989.41, 49,639.64 and 31,200.78 is: 43,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,989.41 : 49,639.64 = 31,200.78 : x
  2. Step 2: Convert to fraction form
    35,989.41/49,639.64 = 31,200.78/x
  3. Step 3: Cross multiply
    35,989.41x = 49,639.64 × 31,200.78
  4. Step 4: Simplify right side
    35,989.41x = 1,548,795,486.92
  5. Step 5: Solve for x
    x = 1,548,795,486.92/35,989.41
  6. Step 6: Final answer
    x = 43,034.76

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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.