Home / 81,551.18-122,378.74-37,182.34

Finding the Fourth Proportional to 81,551.18, 122,378.74 and 37,182.34

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Solution

The fourth proportional to 81,551.18, 122,378.74 and 37,182.34 is: 55,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551.18 : 122,378.74 = 37,182.34 : x
  2. Step 2: Convert to fraction form
    81,551.18/122,378.74 = 37,182.34/x
  3. Step 3: Cross multiply
    81,551.18x = 122,378.74 × 37,182.34
  4. Step 4: Simplify right side
    81,551.18x = 4,550,327,919.45
  5. Step 5: Solve for x
    x = 4,550,327,919.45/81,551.18
  6. Step 6: Final answer
    x = 55,797.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.