Home / 91,211.40-136,744.20-38,577.60

Finding the Fourth Proportional to 91,211.40, 136,744.20 and 38,577.60

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Solution

The fourth proportional to 91,211.40, 136,744.20 and 38,577.60 is: 57,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,211.40 : 136,744.20 = 38,577.60 : x
  2. Step 2: Convert to fraction form
    91,211.40/136,744.20 = 38,577.60/x
  3. Step 3: Cross multiply
    91,211.40x = 136,744.20 × 38,577.60
  4. Step 4: Simplify right side
    91,211.40x = 5,275,263,049.92
  5. Step 5: Solve for x
    x = 5,275,263,049.92/91,211.40
  6. Step 6: Final answer
    x = 57,835.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.