Home / 81,218.10-112,080.24-44,919.54

Finding the Fourth Proportional to 81,218.10, 112,080.24 and 44,919.54

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Solution

The fourth proportional to 81,218.10, 112,080.24 and 44,919.54 is: 61,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,218.10 : 112,080.24 = 44,919.54 : x
  2. Step 2: Convert to fraction form
    81,218.10/112,080.24 = 44,919.54/x
  3. Step 3: Cross multiply
    81,218.10x = 112,080.24 × 44,919.54
  4. Step 4: Simplify right side
    81,218.10x = 5,034,592,823.89
  5. Step 5: Solve for x
    x = 5,034,592,823.89/81,218.10
  6. Step 6: Final answer
    x = 61,988.56

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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.