Home / 80,208.77-120,531.24-42,795.27

Finding the Fourth Proportional to 80,208.77, 120,531.24 and 42,795.27

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Solution

The fourth proportional to 80,208.77, 120,531.24 and 42,795.27 is: 64,309.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,208.77 : 120,531.24 = 42,795.27 : x
  2. Step 2: Convert to fraction form
    80,208.77/120,531.24 = 42,795.27/x
  3. Step 3: Cross multiply
    80,208.77x = 120,531.24 × 42,795.27
  4. Step 4: Simplify right side
    80,208.77x = 5,158,166,959.23
  5. Step 5: Solve for x
    x = 5,158,166,959.23/80,208.77
  6. Step 6: Final answer
    x = 64,309.27

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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.