Home / 81,144.34-111,845.37-54,277.18

Finding the Fourth Proportional to 81,144.34, 111,845.37 and 54,277.18

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Solution

The fourth proportional to 81,144.34, 111,845.37 and 54,277.18 is: 74,813.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,144.34 : 111,845.37 = 54,277.18 : x
  2. Step 2: Convert to fraction form
    81,144.34/111,845.37 = 54,277.18/x
  3. Step 3: Cross multiply
    81,144.34x = 111,845.37 × 54,277.18
  4. Step 4: Simplify right side
    81,144.34x = 6,070,651,279.66
  5. Step 5: Solve for x
    x = 6,070,651,279.66/81,144.34
  6. Step 6: Final answer
    x = 74,813.00

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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.