Home / 91,928.59-126,751.08-66,394.15

Finding the Fourth Proportional to 91,928.59, 126,751.08 and 66,394.15

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Solution

The fourth proportional to 91,928.59, 126,751.08 and 66,394.15 is: 91,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,928.59 : 126,751.08 = 66,394.15 : x
  2. Step 2: Convert to fraction form
    91,928.59/126,751.08 = 66,394.15/x
  3. Step 3: Cross multiply
    91,928.59x = 126,751.08 × 66,394.15
  4. Step 4: Simplify right side
    91,928.59x = 8,415,530,218.18
  5. Step 5: Solve for x
    x = 8,415,530,218.18/91,928.59
  6. Step 6: Final answer
    x = 91,544.21

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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.