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Finding the Fourth Proportional to 80,291.50, 110,623.85 and 53,019.16

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Solution

The fourth proportional to 80,291.50, 110,623.85 and 53,019.16 is: 73,048.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,291.50 : 110,623.85 = 53,019.16 : x
  2. Step 2: Convert to fraction form
    80,291.50/110,623.85 = 53,019.16/x
  3. Step 3: Cross multiply
    80,291.50x = 110,623.85 × 53,019.16
  4. Step 4: Simplify right side
    80,291.50x = 5,865,183,409.25
  5. Step 5: Solve for x
    x = 5,865,183,409.25/80,291.50
  6. Step 6: Final answer
    x = 73,048.62

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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.