Home / 91,705.20-126,560.52-53,986.80

Finding the Fourth Proportional to 91,705.20, 126,560.52 and 53,986.80

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Solution

The fourth proportional to 91,705.20, 126,560.52 and 53,986.80 is: 74,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,705.20 : 126,560.52 = 53,986.80 : x
  2. Step 2: Convert to fraction form
    91,705.20/126,560.52 = 53,986.80/x
  3. Step 3: Cross multiply
    91,705.20x = 126,560.52 × 53,986.80
  4. Step 4: Simplify right side
    91,705.20x = 6,832,597,481.14
  5. Step 5: Solve for x
    x = 6,832,597,481.14/91,705.20
  6. Step 6: Final answer
    x = 74,506.11

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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.