Home / 80,630.16-120,945.24-39,048

Finding the Fourth Proportional to 80,630.16, 120,945.24 and 39,048

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Solution

The fourth proportional to 80,630.16, 120,945.24 and 39,048 is: 58,572

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,630.16 : 120,945.24 = 39,048 : x
  2. Step 2: Convert to fraction form
    80,630.16/120,945.24 = 39,048/x
  3. Step 3: Cross multiply
    80,630.16x = 120,945.24 × 39,048
  4. Step 4: Simplify right side
    80,630.16x = 4,722,669,731.52
  5. Step 5: Solve for x
    x = 4,722,669,731.52/80,630.16
  6. Step 6: Final answer
    x = 58,572

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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.