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Finding the Fourth Proportional to 60,817.81, 91,189.45 and 21,379.45

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Solution

The fourth proportional to 60,817.81, 91,189.45 and 21,379.45 is: 32,056.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,817.81 : 91,189.45 = 21,379.45 : x
  2. Step 2: Convert to fraction form
    60,817.81/91,189.45 = 21,379.45/x
  3. Step 3: Cross multiply
    60,817.81x = 91,189.45 × 21,379.45
  4. Step 4: Simplify right side
    60,817.81x = 1,949,580,286.80
  5. Step 5: Solve for x
    x = 1,949,580,286.80/60,817.81
  6. Step 6: Final answer
    x = 32,056.08

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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.