Home / 55,031.38-75,943.30-29,880.88

Finding the Fourth Proportional to 55,031.38, 75,943.30 and 29,880.88

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Solution

The fourth proportional to 55,031.38, 75,943.30 and 29,880.88 is: 41,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,031.38 : 75,943.30 = 29,880.88 : x
  2. Step 2: Convert to fraction form
    55,031.38/75,943.30 = 29,880.88/x
  3. Step 3: Cross multiply
    55,031.38x = 75,943.30 × 29,880.88
  4. Step 4: Simplify right side
    55,031.38x = 2,269,252,634.10
  5. Step 5: Solve for x
    x = 2,269,252,634.10/55,031.38
  6. Step 6: Final answer
    x = 41,235.61

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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.