Home / 80,937.48-121,441.27-43,453.81

Finding the Fourth Proportional to 80,937.48, 121,441.27 and 43,453.81

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Solution

The fourth proportional to 80,937.48, 121,441.27 and 43,453.81 is: 65,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,937.48 : 121,441.27 = 43,453.81 : x
  2. Step 2: Convert to fraction form
    80,937.48/121,441.27 = 43,453.81/x
  3. Step 3: Cross multiply
    80,937.48x = 121,441.27 × 43,453.81
  4. Step 4: Simplify right side
    80,937.48x = 5,277,085,872.74
  5. Step 5: Solve for x
    x = 5,277,085,872.74/80,937.48
  6. Step 6: Final answer
    x = 65,199.53

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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.