Home / 61,640.06-85,206.76-54,991.58

Finding the Fourth Proportional to 61,640.06, 85,206.76 and 54,991.58

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Solution

The fourth proportional to 61,640.06, 85,206.76 and 54,991.58 is: 76,016.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,640.06 : 85,206.76 = 54,991.58 : x
  2. Step 2: Convert to fraction form
    61,640.06/85,206.76 = 54,991.58/x
  3. Step 3: Cross multiply
    61,640.06x = 85,206.76 × 54,991.58
  4. Step 4: Simplify right side
    61,640.06x = 4,685,654,359.08
  5. Step 5: Solve for x
    x = 4,685,654,359.08/61,640.06
  6. Step 6: Final answer
    x = 76,016.38

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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.