Home / 330,023.08-495,030.30-80,707.24

Finding the Fourth Proportional to 330,023.08, 495,030.30 and 80,707.24

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Solution

The fourth proportional to 330,023.08, 495,030.30 and 80,707.24 is: 121,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,023.08 : 495,030.30 = 80,707.24 : x
  2. Step 2: Convert to fraction form
    330,023.08/495,030.30 = 80,707.24/x
  3. Step 3: Cross multiply
    330,023.08x = 495,030.30 × 80,707.24
  4. Step 4: Simplify right side
    330,023.08x = 39,952,529,229.37
  5. Step 5: Solve for x
    x = 39,952,529,229.37/330,023.08
  6. Step 6: Final answer
    x = 121,059.80

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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.