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Finding the Fourth Proportional to 80,167.90, 110,697.10 and 51,501.80

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Solution

The fourth proportional to 80,167.90, 110,697.10 and 51,501.80 is: 71,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,167.90 : 110,697.10 = 51,501.80 : x
  2. Step 2: Convert to fraction form
    80,167.90/110,697.10 = 51,501.80/x
  3. Step 3: Cross multiply
    80,167.90x = 110,697.10 × 51,501.80
  4. Step 4: Simplify right side
    80,167.90x = 5,701,099,904.78
  5. Step 5: Solve for x
    x = 5,701,099,904.78/80,167.90
  6. Step 6: Final answer
    x = 71,114.50

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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.