Home / 71,842.05-99,145.11-40,010.95

Finding the Fourth Proportional to 71,842.05, 99,145.11 and 40,010.95

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Solution

The fourth proportional to 71,842.05, 99,145.11 and 40,010.95 is: 55,216.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,842.05 : 99,145.11 = 40,010.95 : x
  2. Step 2: Convert to fraction form
    71,842.05/99,145.11 = 40,010.95/x
  3. Step 3: Cross multiply
    71,842.05x = 99,145.11 × 40,010.95
  4. Step 4: Simplify right side
    71,842.05x = 3,966,890,038.95
  5. Step 5: Solve for x
    x = 3,966,890,038.95/71,842.05
  6. Step 6: Final answer
    x = 55,216.83

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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.