Home / 87,168.06-120,347.91-53,653.50

Finding the Fourth Proportional to 87,168.06, 120,347.91 and 53,653.50

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Solution

The fourth proportional to 87,168.06, 120,347.91 and 53,653.50 is: 74,076.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,168.06 : 120,347.91 = 53,653.50 : x
  2. Step 2: Convert to fraction form
    87,168.06/120,347.91 = 53,653.50/x
  3. Step 3: Cross multiply
    87,168.06x = 120,347.91 × 53,653.50
  4. Step 4: Simplify right side
    87,168.06x = 6,457,086,589.19
  5. Step 5: Solve for x
    x = 6,457,086,589.19/87,168.06
  6. Step 6: Final answer
    x = 74,076.29

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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.