Home / 330,032.08-495,043.80-80,716.24

Finding the Fourth Proportional to 330,032.08, 495,043.80 and 80,716.24

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Solution

The fourth proportional to 330,032.08, 495,043.80 and 80,716.24 is: 121,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,032.08 : 495,043.80 = 80,716.24 : x
  2. Step 2: Convert to fraction form
    330,032.08/495,043.80 = 80,716.24/x
  3. Step 3: Cross multiply
    330,032.08x = 495,043.80 × 80,716.24
  4. Step 4: Simplify right side
    330,032.08x = 39,958,074,171.31
  5. Step 5: Solve for x
    x = 39,958,074,171.31/330,032.08
  6. Step 6: Final answer
    x = 121,073.30

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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.