Home / 80,993.61-121,426.02-53,087.49

Finding the Fourth Proportional to 80,993.61, 121,426.02 and 53,087.49

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Solution

The fourth proportional to 80,993.61, 121,426.02 and 53,087.49 is: 79,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,993.61 : 121,426.02 = 53,087.49 : x
  2. Step 2: Convert to fraction form
    80,993.61/121,426.02 = 53,087.49/x
  3. Step 3: Cross multiply
    80,993.61x = 121,426.02 × 53,087.49
  4. Step 4: Simplify right side
    80,993.61x = 6,446,202,622.49
  5. Step 5: Solve for x
    x = 6,446,202,622.49/80,993.61
  6. Step 6: Final answer
    x = 79,589.03

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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.