Home / 81,303.85-121,973.70-24,375.49

Finding the Fourth Proportional to 81,303.85, 121,973.70 and 24,375.49

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Solution

The fourth proportional to 81,303.85, 121,973.70 and 24,375.49 is: 36,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,303.85 : 121,973.70 = 24,375.49 : x
  2. Step 2: Convert to fraction form
    81,303.85/121,973.70 = 24,375.49/x
  3. Step 3: Cross multiply
    81,303.85x = 121,973.70 × 24,375.49
  4. Step 4: Simplify right side
    81,303.85x = 2,973,167,972.87
  5. Step 5: Solve for x
    x = 2,973,167,972.87/81,303.85
  6. Step 6: Final answer
    x = 36,568.60

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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.