Home / 81,507.88-122,268.30-34,761.16

Finding the Fourth Proportional to 81,507.88, 122,268.30 and 34,761.16

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Solution

The fourth proportional to 81,507.88, 122,268.30 and 34,761.16 is: 52,144.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,507.88 : 122,268.30 = 34,761.16 : x
  2. Step 2: Convert to fraction form
    81,507.88/122,268.30 = 34,761.16/x
  3. Step 3: Cross multiply
    81,507.88x = 122,268.30 × 34,761.16
  4. Step 4: Simplify right side
    81,507.88x = 4,250,187,939.23
  5. Step 5: Solve for x
    x = 4,250,187,939.23/81,507.88
  6. Step 6: Final answer
    x = 52,144.50

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1.5x scale

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.