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Finding the Fourth Proportional to 70,914.48, 106,371.24 and 21,666.48

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Solution

The fourth proportional to 70,914.48, 106,371.24 and 21,666.48 is: 32,499.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,914.48 : 106,371.24 = 21,666.48 : x
  2. Step 2: Convert to fraction form
    70,914.48/106,371.24 = 21,666.48/x
  3. Step 3: Cross multiply
    70,914.48x = 106,371.24 × 21,666.48
  4. Step 4: Simplify right side
    70,914.48x = 2,304,690,344.04
  5. Step 5: Solve for x
    x = 2,304,690,344.04/70,914.48
  6. Step 6: Final answer
    x = 32,499.57

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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.