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Finding the Fourth Proportional to 67,862.56, 101,793.84 and 21,106.12

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Solution

The fourth proportional to 67,862.56, 101,793.84 and 21,106.12 is: 31,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,862.56 : 101,793.84 = 21,106.12 : x
  2. Step 2: Convert to fraction form
    67,862.56/101,793.84 = 21,106.12/x
  3. Step 3: Cross multiply
    67,862.56x = 101,793.84 × 21,106.12
  4. Step 4: Simplify right side
    67,862.56x = 2,148,473,002.30
  5. Step 5: Solve for x
    x = 2,148,473,002.30/67,862.56
  6. Step 6: Final answer
    x = 31,659.18

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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.