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Finding the Fourth Proportional to 75,213.70, 112,822.61 and 21,903.55

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Solution

The fourth proportional to 75,213.70, 112,822.61 and 21,903.55 is: 32,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,213.70 : 112,822.61 = 21,903.55 : x
  2. Step 2: Convert to fraction form
    75,213.70/112,822.61 = 21,903.55/x
  3. Step 3: Cross multiply
    75,213.70x = 112,822.61 × 21,903.55
  4. Step 4: Simplify right side
    75,213.70x = 2,471,215,679.27
  5. Step 5: Solve for x
    x = 2,471,215,679.27/75,213.70
  6. Step 6: Final answer
    x = 32,855.92

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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.