Home / 91,511.12-126,364.14-57,576.16

Finding the Fourth Proportional to 91,511.12, 126,364.14 and 57,576.16

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Solution

The fourth proportional to 91,511.12, 126,364.14 and 57,576.16 is: 79,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,511.12 : 126,364.14 = 57,576.16 : x
  2. Step 2: Convert to fraction form
    91,511.12/126,364.14 = 57,576.16/x
  3. Step 3: Cross multiply
    91,511.12x = 126,364.14 × 57,576.16
  4. Step 4: Simplify right side
    91,511.12x = 7,275,561,942.90
  5. Step 5: Solve for x
    x = 7,275,561,942.90/91,511.12
  6. Step 6: Final answer
    x = 79,504.68

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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.