Home / 90,384.46-124,729.05-49,548.31

Finding the Fourth Proportional to 90,384.46, 124,729.05 and 49,548.31

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Solution

The fourth proportional to 90,384.46, 124,729.05 and 49,548.31 is: 68,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,384.46 : 124,729.05 = 49,548.31 : x
  2. Step 2: Convert to fraction form
    90,384.46/124,729.05 = 49,548.31/x
  3. Step 3: Cross multiply
    90,384.46x = 124,729.05 × 49,548.31
  4. Step 4: Simplify right side
    90,384.46x = 6,180,113,635.41
  5. Step 5: Solve for x
    x = 6,180,113,635.41/90,384.46
  6. Step 6: Final answer
    x = 68,375.84

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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.