Home / 87,704.06-120,952.17-57,478.50

Finding the Fourth Proportional to 87,704.06, 120,952.17 and 57,478.50

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Solution

The fourth proportional to 87,704.06, 120,952.17 and 57,478.50 is: 79,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.06 : 120,952.17 = 57,478.50 : x
  2. Step 2: Convert to fraction form
    87,704.06/120,952.17 = 57,478.50/x
  3. Step 3: Cross multiply
    87,704.06x = 120,952.17 × 57,478.50
  4. Step 4: Simplify right side
    87,704.06x = 6,952,149,303.35
  5. Step 5: Solve for x
    x = 6,952,149,303.35/87,704.06
  6. Step 6: Final answer
    x = 79,268.28

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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.