Home / 80,833.88-121,251.03-28,243.35

Finding the Fourth Proportional to 80,833.88, 121,251.03 and 28,243.35

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Solution

The fourth proportional to 80,833.88, 121,251.03 and 28,243.35 is: 42,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,833.88 : 121,251.03 = 28,243.35 : x
  2. Step 2: Convert to fraction form
    80,833.88/121,251.03 = 28,243.35/x
  3. Step 3: Cross multiply
    80,833.88x = 121,251.03 × 28,243.35
  4. Step 4: Simplify right side
    80,833.88x = 3,424,535,172.24
  5. Step 5: Solve for x
    x = 3,424,535,172.24/80,833.88
  6. Step 6: Final answer
    x = 42,365.10

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1.5x scale

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.