Home / 85,314.36-127,991.54-29,154.94

Finding the Fourth Proportional to 85,314.36, 127,991.54 and 29,154.94

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Solution

The fourth proportional to 85,314.36, 127,991.54 and 29,154.94 is: 43,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,314.36 : 127,991.54 = 29,154.94 : x
  2. Step 2: Convert to fraction form
    85,314.36/127,991.54 = 29,154.94/x
  3. Step 3: Cross multiply
    85,314.36x = 127,991.54 × 29,154.94
  4. Step 4: Simplify right side
    85,314.36x = 3,731,585,422.12
  5. Step 5: Solve for x
    x = 3,731,585,422.12/85,314.36
  6. Step 6: Final answer
    x = 43,739.24

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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.