Home / 87,568.02-120,821.63-53,564.09

Finding the Fourth Proportional to 87,568.02, 120,821.63 and 53,564.09

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Solution

The fourth proportional to 87,568.02, 120,821.63 and 53,564.09 is: 73,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,568.02 : 120,821.63 = 53,564.09 : x
  2. Step 2: Convert to fraction form
    87,568.02/120,821.63 = 53,564.09/x
  3. Step 3: Cross multiply
    87,568.02x = 120,821.63 × 53,564.09
  4. Step 4: Simplify right side
    87,568.02x = 6,471,699,791.34
  5. Step 5: Solve for x
    x = 6,471,699,791.34/87,568.02
  6. Step 6: Final answer
    x = 73,904.83

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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.