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Finding the Fourth Proportional to 71,101.84, 106,560.42 and 28,932.76

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Solution

The fourth proportional to 71,101.84, 106,560.42 and 28,932.76 is: 43,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,101.84 : 106,560.42 = 28,932.76 : x
  2. Step 2: Convert to fraction form
    71,101.84/106,560.42 = 28,932.76/x
  3. Step 3: Cross multiply
    71,101.84x = 106,560.42 × 28,932.76
  4. Step 4: Simplify right side
    71,101.84x = 3,083,087,057.36
  5. Step 5: Solve for x
    x = 3,083,087,057.36/71,101.84
  6. Step 6: Final answer
    x = 43,361.57

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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.