Home / 84,409.37-116,429.91-54,146.75

Finding the Fourth Proportional to 84,409.37, 116,429.91 and 54,146.75

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Solution

The fourth proportional to 84,409.37, 116,429.91 and 54,146.75 is: 74,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,409.37 : 116,429.91 = 54,146.75 : x
  2. Step 2: Convert to fraction form
    84,409.37/116,429.91 = 54,146.75/x
  3. Step 3: Cross multiply
    84,409.37x = 116,429.91 × 54,146.75
  4. Step 4: Simplify right side
    84,409.37x = 6,304,301,229.29
  5. Step 5: Solve for x
    x = 6,304,301,229.29/84,409.37
  6. Step 6: Final answer
    x = 74,687.22

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1.5x scale

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.