Home / 91,554.56-126,358.09-66,143.13

Finding the Fourth Proportional to 91,554.56, 126,358.09 and 66,143.13

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Solution

The fourth proportional to 91,554.56, 126,358.09 and 66,143.13 is: 91,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,554.56 : 126,358.09 = 66,143.13 : x
  2. Step 2: Convert to fraction form
    91,554.56/126,358.09 = 66,143.13/x
  3. Step 3: Cross multiply
    91,554.56x = 126,358.09 × 66,143.13
  4. Step 4: Simplify right side
    91,554.56x = 8,357,719,573.42
  5. Step 5: Solve for x
    x = 8,357,719,573.42/91,554.56
  6. Step 6: Final answer
    x = 91,286.76

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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.