Home / 53,285.10-79,902.09-31,105.02

Finding the Fourth Proportional to 53,285.10, 79,902.09 and 31,105.02

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Solution

The fourth proportional to 53,285.10, 79,902.09 and 31,105.02 is: 46,642.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,285.10 : 79,902.09 = 31,105.02 : x
  2. Step 2: Convert to fraction form
    53,285.10/79,902.09 = 31,105.02/x
  3. Step 3: Cross multiply
    53,285.10x = 79,902.09 × 31,105.02
  4. Step 4: Simplify right side
    53,285.10x = 2,485,356,107.49
  5. Step 5: Solve for x
    x = 2,485,356,107.49/53,285.10
  6. Step 6: Final answer
    x = 46,642.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.