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Finding the Fourth Proportional to 91,191.60, 136,722.60 and 41,295.60

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Solution

The fourth proportional to 91,191.60, 136,722.60 and 41,295.60 is: 61,914.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,191.60 : 136,722.60 = 41,295.60 : x
  2. Step 2: Convert to fraction form
    91,191.60/136,722.60 = 41,295.60/x
  3. Step 3: Cross multiply
    91,191.60x = 136,722.60 × 41,295.60
  4. Step 4: Simplify right side
    91,191.60x = 5,646,041,800.56
  5. Step 5: Solve for x
    x = 5,646,041,800.56/91,191.60
  6. Step 6: Final answer
    x = 61,914.06

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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.