Home / 71,776.96-99,051.24-39,945.85

Finding the Fourth Proportional to 71,776.96, 99,051.24 and 39,945.85

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Solution

The fourth proportional to 71,776.96, 99,051.24 and 39,945.85 is: 55,124.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,776.96 : 99,051.24 = 39,945.85 : x
  2. Step 2: Convert to fraction form
    71,776.96/99,051.24 = 39,945.85/x
  3. Step 3: Cross multiply
    71,776.96x = 99,051.24 × 39,945.85
  4. Step 4: Simplify right side
    71,776.96x = 3,956,685,280.37
  5. Step 5: Solve for x
    x = 3,956,685,280.37/71,776.96
  6. Step 6: Final answer
    x = 55,124.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.