Home / 71,743.50-99,005.95-39,911.71

Finding the Fourth Proportional to 71,743.50, 99,005.95 and 39,911.71

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Solution

The fourth proportional to 71,743.50, 99,005.95 and 39,911.71 is: 55,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,743.50 : 99,005.95 = 39,911.71 : x
  2. Step 2: Convert to fraction form
    71,743.50/99,005.95 = 39,911.71/x
  3. Step 3: Cross multiply
    71,743.50x = 99,005.95 × 39,911.71
  4. Step 4: Simplify right side
    71,743.50x = 3,951,496,764.67
  5. Step 5: Solve for x
    x = 3,951,496,764.67/71,743.50
  6. Step 6: Final answer
    x = 55,078.12

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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.