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Finding the Fourth Proportional to 80,259.16, 110,727.90 and 51,980.44

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Solution

The fourth proportional to 80,259.16, 110,727.90 and 51,980.44 is: 71,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,259.16 : 110,727.90 = 51,980.44 : x
  2. Step 2: Convert to fraction form
    80,259.16/110,727.90 = 51,980.44/x
  3. Step 3: Cross multiply
    80,259.16x = 110,727.90 × 51,980.44
  4. Step 4: Simplify right side
    80,259.16x = 5,755,684,962.28
  5. Step 5: Solve for x
    x = 5,755,684,962.28/80,259.16
  6. Step 6: Final answer
    x = 71,713.75

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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.