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Finding the Fourth Proportional to 70,998.10, 97,982.13 and 40,793.20

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Solution

The fourth proportional to 70,998.10, 97,982.13 and 40,793.20 is: 56,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,998.10 : 97,982.13 = 40,793.20 : x
  2. Step 2: Convert to fraction form
    70,998.10/97,982.13 = 40,793.20/x
  3. Step 3: Cross multiply
    70,998.10x = 97,982.13 × 40,793.20
  4. Step 4: Simplify right side
    70,998.10x = 3,997,004,625.52
  5. Step 5: Solve for x
    x = 3,997,004,625.52/70,998.10
  6. Step 6: Final answer
    x = 56,297.35

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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.