Home / 55,211.10-76,201.11-31,333.02

Finding the Fourth Proportional to 55,211.10, 76,201.11 and 31,333.02

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Solution

The fourth proportional to 55,211.10, 76,201.11 and 31,333.02 is: 43,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.10 : 76,201.11 = 31,333.02 : x
  2. Step 2: Convert to fraction form
    55,211.10/76,201.11 = 31,333.02/x
  3. Step 3: Cross multiply
    55,211.10x = 76,201.11 × 31,333.02
  4. Step 4: Simplify right side
    55,211.10x = 2,387,610,903.65
  5. Step 5: Solve for x
    x = 2,387,610,903.65/55,211.10
  6. Step 6: Final answer
    x = 43,245.12

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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.