Home / 91,900.90-126,808.34-57,441.56

Finding the Fourth Proportional to 91,900.90, 126,808.34 and 57,441.56

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Solution

The fourth proportional to 91,900.90, 126,808.34 and 57,441.56 is: 79,260.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,900.90 : 126,808.34 = 57,441.56 : x
  2. Step 2: Convert to fraction form
    91,900.90/126,808.34 = 57,441.56/x
  3. Step 3: Cross multiply
    91,900.90x = 126,808.34 × 57,441.56
  4. Step 4: Simplify right side
    91,900.90x = 7,284,068,900.42
  5. Step 5: Solve for x
    x = 7,284,068,900.42/91,900.90
  6. Step 6: Final answer
    x = 79,260.04

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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.