Home / 67,431.20-101,171.10-28,016.60

Finding the Fourth Proportional to 67,431.20, 101,171.10 and 28,016.60

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Solution

The fourth proportional to 67,431.20, 101,171.10 and 28,016.60 is: 42,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,431.20 : 101,171.10 = 28,016.60 : x
  2. Step 2: Convert to fraction form
    67,431.20/101,171.10 = 28,016.60/x
  3. Step 3: Cross multiply
    67,431.20x = 101,171.10 × 28,016.60
  4. Step 4: Simplify right side
    67,431.20x = 2,834,470,240.26
  5. Step 5: Solve for x
    x = 2,834,470,240.26/67,431.20
  6. Step 6: Final answer
    x = 42,035.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.