Home / 85,268.62-127,906.31-31,955.03

Finding the Fourth Proportional to 85,268.62, 127,906.31 and 31,955.03

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Solution

The fourth proportional to 85,268.62, 127,906.31 and 31,955.03 is: 47,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,268.62 : 127,906.31 = 31,955.03 : x
  2. Step 2: Convert to fraction form
    85,268.62/127,906.31 = 31,955.03/x
  3. Step 3: Cross multiply
    85,268.62x = 127,906.31 × 31,955.03
  4. Step 4: Simplify right side
    85,268.62x = 4,087,249,973.24
  5. Step 5: Solve for x
    x = 4,087,249,973.24/85,268.62
  6. Step 6: Final answer
    x = 47,933.81

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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.