Home / 67,847.56-101,781.02-21,105.16

Finding the Fourth Proportional to 67,847.56, 101,781.02 and 21,105.16

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Solution

The fourth proportional to 67,847.56, 101,781.02 and 21,105.16 is: 31,660.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,847.56 : 101,781.02 = 21,105.16 : x
  2. Step 2: Convert to fraction form
    67,847.56/101,781.02 = 21,105.16/x
  3. Step 3: Cross multiply
    67,847.56x = 101,781.02 × 21,105.16
  4. Step 4: Simplify right side
    67,847.56x = 2,148,104,712.06
  5. Step 5: Solve for x
    x = 2,148,104,712.06/67,847.56
  6. Step 6: Final answer
    x = 31,660.75

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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.