Home / 80,501.08-120,752.04-47,197.79

Finding the Fourth Proportional to 80,501.08, 120,752.04 and 47,197.79

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Solution

The fourth proportional to 80,501.08, 120,752.04 and 47,197.79 is: 70,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,501.08 : 120,752.04 = 47,197.79 : x
  2. Step 2: Convert to fraction form
    80,501.08/120,752.04 = 47,197.79/x
  3. Step 3: Cross multiply
    80,501.08x = 120,752.04 × 47,197.79
  4. Step 4: Simplify right side
    80,501.08x = 5,699,229,727.87
  5. Step 5: Solve for x
    x = 5,699,229,727.87/80,501.08
  6. Step 6: Final answer
    x = 70,796.93

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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.