Home / 71,895.45-99,215.82-40,063.65

Finding the Fourth Proportional to 71,895.45, 99,215.82 and 40,063.65

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Solution

The fourth proportional to 71,895.45, 99,215.82 and 40,063.65 is: 55,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,895.45 : 99,215.82 = 40,063.65 : x
  2. Step 2: Convert to fraction form
    71,895.45/99,215.82 = 40,063.65/x
  3. Step 3: Cross multiply
    71,895.45x = 99,215.82 × 40,063.65
  4. Step 4: Simplify right side
    71,895.45x = 3,974,947,886.94
  5. Step 5: Solve for x
    x = 3,974,947,886.94/71,895.45
  6. Step 6: Final answer
    x = 55,287.89

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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.