Home / 71,841.11-99,143.80-40,010.00

Finding the Fourth Proportional to 71,841.11, 99,143.80 and 40,010.00

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Solution

The fourth proportional to 71,841.11, 99,143.80 and 40,010.00 is: 55,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,841.11 : 99,143.80 = 40,010.00 : x
  2. Step 2: Convert to fraction form
    71,841.11/99,143.80 = 40,010.00/x
  3. Step 3: Cross multiply
    71,841.11x = 99,143.80 × 40,010.00
  4. Step 4: Simplify right side
    71,841.11x = 3,966,743,585.83
  5. Step 5: Solve for x
    x = 3,966,743,585.83/71,841.11
  6. Step 6: Final answer
    x = 55,215.51

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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.