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Finding the Fourth Proportional to 80,484.40, 111,069.78 and 44,189.20

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Solution

The fourth proportional to 80,484.40, 111,069.78 and 44,189.20 is: 60,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,484.40 : 111,069.78 = 44,189.20 : x
  2. Step 2: Convert to fraction form
    80,484.40/111,069.78 = 44,189.20/x
  3. Step 3: Cross multiply
    80,484.40x = 111,069.78 × 44,189.20
  4. Step 4: Simplify right side
    80,484.40x = 4,908,084,167.03
  5. Step 5: Solve for x
    x = 4,908,084,167.03/80,484.40
  6. Step 6: Final answer
    x = 60,981.81

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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.