Home / 80,945.76-121,344.68-28,326.54

Finding the Fourth Proportional to 80,945.76, 121,344.68 and 28,326.54

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Solution

The fourth proportional to 80,945.76, 121,344.68 and 28,326.54 is: 42,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,945.76 : 121,344.68 = 28,326.54 : x
  2. Step 2: Convert to fraction form
    80,945.76/121,344.68 = 28,326.54/x
  3. Step 3: Cross multiply
    80,945.76x = 121,344.68 × 28,326.54
  4. Step 4: Simplify right side
    80,945.76x = 3,437,274,931.81
  5. Step 5: Solve for x
    x = 3,437,274,931.81/80,945.76
  6. Step 6: Final answer
    x = 42,463.93

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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.